英语学习词典
  

不定

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uncertain [ ʌn'sə:tn] a.不定的;无常的

unlimited [ 'ʌn'limitid] a.无限的;不定

without day 不定期;无限制(休会)

pendulous [ 'pendʒələs] adj.悬挂而摇摆不定

sporadic [ spə'rædik] adj.不定时发生的,零星的

vacillate [ 'væsileit] v.游移不定,踌躇

I can't make up my mind between these two dishes that the restaurant offers.
饭店供应的这两道菜到底选哪一道,我拿不定主意。

There is little certainty about the present state of the US economy.
目前美国的经济状况有许多不定的因素。

fluctuating opinions
变化不定的见解

His attitude seems to fluctuate between happiness and hopelessness.
他的情绪波动不定,一会儿高兴,一会儿沮丧。

Thus, for instance, it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom, but only an approximation to a somewhat more correct equation taking account of spin, magnetic dipole, and relatiristic effects, and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field theoretical equations.
这样,对于数学家们来说是非常惊诧的,例如,薛定谔方程式并不是氢原子的准确描述,而只是某种程度上的近似值。它近似于另外一种描述磁性偶极子相对效果的方程,而这个方程本身又是一套不定量子场论方程的近似值。

不定你知道……吧?
Do you happen to know...?
Tom, do you happen to know Mary's phone number? (汤姆,说不定你知道玛丽的电话号码吧?)
Yes, I do. (是的,我知道。)

He who hesitates is lost.
举棋不定,坐失良机。

When in doubt, play trumps.
举棋苟不定,何妨将一军。

I may be the first.说不定我得第一。

I suppose it might be gold.说不定是金子啊。

@@@ 处于...
at risk 处于危险中; 冒险
at ware 处于交战状态
be better off doing sth. 日子更好过, 处境更加佳
gain the upper hand 占上风, 处于有利地位
get (sb.) into hot water 使(某人)处于困境
in flux 处于不断变化之中; 动荡不定
in shape 1.在外形上
2.处于良好状态, 健康
in the spotlight 处于公众注意的中心
in trouble 处在不幸/苦恼/困境中
reduce to 变少; 使处于, 使成为(某种情况或状态)

@@@ 改变, 转换
adaptation to 针对...的适应性的变化
bring over 把...带来; 使某人转变(思想或信仰)
change for the better 改进; 改善; 好转
change for the worse 恶化; 每况愈下
change hands 易手; 易主
change of pace 变换活动; 换口味
change one's mind 改变主意/想法
change sth. into 把...变成...
change the subject 转移话题
cheer (sb.) up 使高兴, 使情绪好转
clear up 1.(天气)变晴, 天空晴朗
2.说明, 澄清
convert sth. into sth. 转变, 变换
cool down/off 变凉爽; 使冷静
develop into 发展成为..., 演变成...
direct at/to sth./sb. 使...转向或对准某一方向; 指示, 命令...
emigrate (from) to (从...)移居到...
evolve from/out of 从...进化来; 从...发展来
evolve into 演化成
fix up 修理; 重新装饰或改装
for the better 好转, 向好的方向发展
get above oneself 变得自高自大
go bad 变坏; 腐败
improve on 对...做出改进
in flux 处于不断变化之中; 动荡不定
in other words 换句话说, 换言之
in place of 代替; 更换
leave much to be desired 不够好; 有待改善
make over 把(财产)转让; 改造
melt away (使某物)融化或溶解而消失; 逐渐消失
move about/around 走来走去; 动来动去; 不断迁移
move away 离开; 搬走
move into 搬入; 迁居
move out (of) 搬出
pass on 把...传给别人; 转移
range from A to B 在A和B之间变化或变动; 从A延伸到B
reduce to 变少; 使处于, 使成为(某种情况或状态)
remove sth. from 将某物从...移到...; 去掉; 免除(职务)
that is to say 那就是说, 换句话说
thaw out 1.(人的态度、行为等)变得随便; 变得温和
2.解冻, 变暖和
toss and turn 辗转反侧, 无法入眠
transfer to 转移到...; 调转到...; 转学到...
transform ... into ... 把...变成...
turn around 回转, 转向
turn into 使变成, 使成为
turn over 翻身; 翻转
vary from ... to ... 从...到...变动/变化
warm up 1.使...变热(暖和)
2.(体育锻炼之前, 音乐演奏之前的)热身

@@@ 运动, 变动
division of labor 劳动分工
from side to side 左右摇摆; 晃动
get around 走动; 旅行
glide along 滑动, 滑过
gym shoes 运动鞋
in flux 处于不断变化之中; 动荡不定
keep track of 了解动态, 掌握线索
move about/around 走来走去; 动来动去; 不断迁移
range from A to B 在A和B之间变化或变动; 从A延伸到B
vary from ... to ... 从...到...变动/变化
work out 1.解决问题; 算出; 设计出
2.做大运动量的锻炼, 健身

mutable a.不定的;可变化的

oscillate v.游移不定;踌躇

- be of two minds 拿不定主意
Jill was of two minds as whether to spend the money on books or on clothes.

变化不定的 Protean

变幻不定的 phantasmagoric

不定 adventitious

不定词 infinitive

不定词的 infinitival; infinitive

不定的 variable; inconstant; indefinite; indeterminate; movable; moveable; wayward; incomplete

不定地 erratically; variably

不定过去 aorist

不定期的 nonsked

不定期航线 nonsked

不定式 infinitive

不定性 inconstancy

不定词 [bú dìng cí] /infinitive/

不定 [bù dìng] /indefinite/adventitious/indeterminate/

不定 [shuō bu dìng] /can't say for sure/maybe/

摇摆不定的 [yáo bǎi bù dìng de ] /undecided/

And there are long, variable lags before policy changes have any effect on the economy.
在政策改变对经济产生影响前会有一段较长时间且变化不定的后滞期。

Still, behind their laughter, many were afraid--afraid that perhaps--who knows--the world might end that very day.
但在笑声的背后,许多人很担心-害怕有可能-说不定-世界末日真的就在那一天。

At first, Larry thought it was a joke, but as life grew more miserable, he was appalled at how good old Dave could let power go to his head.
起初,拉里以为这是在开玩笑,但是随着日子更加难熬,他觉得惊魂不定,不明白一向善解人意、处事老练的大卫怎么会让权力冲昏自己的头脑。

Yet the pop music field remained a but capricious but plucky enterprise.
尽管也时常起伏不定,但是通俗音乐却始终保持着旺盛的生命力。

GLITZ GUIDE Planning a trip to Las Vegas but not sure where to start?
赌城指南。是不是打算去拉斯维加斯玩却拿不定主意从哪里开始?

If you 're not sure, just set it to " Karaoke " and you can go for a less stressful singing session together Hit-The-Mole.
如果你拿不定主意,不妨将选项调到卡拉 OK ,轻松地唱上一曲。

Drowsiness, dizziness, nausea and unsteadiness can usually be alleviated by adjusting the dosages of the drug, while more severe side effects, such as liver toxicity, blood disorders and disturbed vision, are relatively rare.
通过调节这种药物的用量,瞌睡、头晕脑胀、恶心和摇摆不定等不良反应一般都会减轻,而且很少发生其它更为严重的副作用,比如说肝中毒、血液循环失调和视线模糊等。

He submitted to first one and then another, and the spirit blew where it listed; hence the unevenness of any one of his novels.
他委身于第一种创作冲动,接下来又委身于另一种创作冲动,而创作灵感则随心所欲地飘忽不定;因此,他的任何一部小说均显得参差不齐,高低不一。

But he found it difficult to control the drift of his inspiration.
但他发现难以控制其灵感的飘忽不定

Democrats say the plan means younger workers could lose much of their retirement savings in the uncertainty of financial markets.
民主党人说,这个计划意味着年轻人可能在风险不定的金融市场上损失掉他们大部份退休储蓄。

This debate was important for both candidates. They are virtually tied in the polls, with less than three weeks to go before the November 2 election. The focus for both in coming days will be the so-called swing states, such as Florida, Nevada, Oregon, and Wisconsin, where pollsters say either candidate could win.
这次辩论对两位候选人来说都非常重要。在距离11月2号大选还有不到三个星期的情况下,民意调查显示他们两人基本上是旗鼓相当。在选举日到来之前,他们将把主要精力集中在所谓的左右摇摆不定的州,例如佛罗里达州、内华达州、俄勒冈州和威斯康辛州。民意调查人员说,在这些州里,两位候选人中任何一人都可能获胜。

F20.1
Hebephrenic schizophrenia
A form of schizophrenia in which affective changes are prominent, delusions and
hallucinations fleeting and fragmentary, behaviour irresponsible and unpredictable, and
mannerisms common. The mood is shallow and inappropriate, thought is disorganized, and
speech is incoherent. There is a tendency to social isolation. Usually the prognosis is
poor because of the rapid development of "negative" symptoms, particularly
flattening of affect and loss of volition. Hebephrenia should normally be diagnosed only
in adolescents or young adults.
Disorganized schizophrenia
Hebephrenia
青春型精神分裂症 
精神分裂症的一种 , 其情感变化显着 , 妄想与幻觉
变化不定且片片断断 , 行为不负责任且无法预测 ,
常有作态现象。情绪表浅且不恰当 , 思想凌乱、语
言失序。患者有孤独的倾向。通常预後不好 , 因为
其负性症状迅速产生 , 特别是情感平淡与意志力丧
失。一般而言 , 第一次下此诊断时 , 是要在青春期
或成年初期。 
解组型精神分裂症 (disorganized schizorhernia)  
青春型精神病症 (hebephrenia)  

F45.0
Somatization disorder
The main features are multiple, recurrent and frequently changing physical symptoms of at
least two years' duration. Most patients have a long and complicated history of contact
with both primary and specialist medical care services, during which many negative
investigations or fruitless exploratory operations may have been carried out. Symptoms may
be referred to any part or system of the body. The course of the disorder is chronic and
fluctuating, and is often associated with disruption of social, interpersonal, and family
behaviour. Short-lived (less than two years) and less striking symptom patterns should be
classified under undifferentiated somatoform disorder (F45.1).
Multiple psychosomatic disorder
Excludes: malingering [conscious simulation] (Z76.5)
身体化症
主要特徵是多重的 , 再发的且频繁变化的身体症状
, 至少持续二年。大多数病人有一个既长又复杂的
病史 , 他们在基层或专科医疗中作过许多结果正常
的检查或是毫无成果的手术。在身体的任何部位都
可能有症状。病程是慢性化及起伏不定的 , 经常伴
有社会、人际间及家庭生活上的障碍。较短暂的 (
例如少於二年的 ) 和较不明显的症状两类型最好归
在未分化拟身体障碍症 (F45.1)
多重心身症。
不包含 : 诈病〔意识操作〕 (Z76.5) 。

INFECTIOUS ARTHROPATHIES (M00-M03)
Note: This block comprises arthropathies due to microbiological agents. Distinction is
made between the following types of etiological relationship:
(a) direct infection of joint, where organisms invade synovial tissue and microbial
antigen is present in the joint;
(b) indirect infection, which may be of two types: a reactive arthropathy, where microbial
infection of the body is estab- lished but neither organisms nor antigens can be
identified in the joint, and a postinfective arthropathy, where microbial antigen is
present but recovery of an organism is inconstant and evidence of local multiplication is
lacking.
感染性关节病变 (M00-M03)
注 : 这部份由肇因於微生物因子之关节病变组成。
由下列病原学关系之型式以示区别 :
(a) 直接关节感染 , 其病原体侵犯滑膜组织而且微生
物抗原存在於关节中 ;
(b) 间接感染 , 其可分为两种型式 : 一种反应性关节
病变 , 其身体之微生物感染被确立 , 但既无生物也
无抗原能在关节中被确认 , 及一种感染後关节病变
, 其微生物抗原存在但病原体的复原为不定的且无
局部增殖的证据。

tramp steamer 不定期货船

adventitious 不定的,无定形的

不定常法 time-dependent method

不定期(租船)运输 Tramp transport


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