It can be naturally generated from Uranium atoms that have spontaneously split.
它可以由自发分裂的铀原子自然生成。
Her observations helped dismiss the popular belief that insects spontaneously emerged from mud.
她的观察有助于驳斥一种普遍观点，即昆虫会从泥土中自然出现。
We spontaneously started to dance.
我们情不自禁地跳起舞来。
The bleeding often stops spontaneously.
这种出血常常会自己停止。
For reasons that aren't yet well understood, cloned animals often abort spontaneously or are born with defects.
由于无法搞懂的原因，克隆动物通常会自行流产，或者具有天生缺陷。
He suggested to Malcolm McDowell, who played Alex de Large, that he add in a little dance spontaneously during the next take.
他建议扮演亚历克斯·德·拉杰的马尔科姆·麦克道尔在接下来的拍摄中即兴加入一点舞蹈。
The discovery I have made and which I call Heliography, consists in reproducing spontaneously, by the action of light.
我将这次探索的结果称为日光图，在于借着光的作用自发再现。
This one also happens spontaneously.
这个反应同样自发发生。
The mutations appear to occur sporadically and spontaneously.
变异似是偶发和自发的。
The blockages in the arteries never re-open spontaneously.
动脉中的堵塞并不会自己重新打开。
Falling asleep spontaneously during quiet times of the day.
白天安静的时候打瞌睡。
The same or other users then spontaneously rated the pictures.
同时这些用户或其他用户给这些照片评级。
These symptoms also resolve spontaneously, usually within 48 hours.
这些症状通常在48小时之内也可以自行消退。
"Variations in atmospheric circulation happen spontaneously," says Knight.
奈特说，“大气环流自然发生变异。”
It is well known and expected that influenza virus can mutate spontaneously.
Daigle一封电子邮件中说，在人们都知道并且期待着流感病毒能够自然地变异。
It'll be there when you need it, but you won't be able to spend it spontaneously.
你需要的时候，它随时都在那，但你不会不由自主地花掉它。
The used fuel is extremely radioactive and ignites spontaneously at high temperatures.
（反应堆）使用的燃料具有强放射性并且在高温下自发燃烧。
You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
我们有一些放射性同位素，这些同位素会自发变成其他的原子核。
Days later Malcolm passed our table with his tray and spontaneously I said a seat was free.
几天以后，当我和马克吃饭时，马尔科姆拿着他的盘子经过我们的桌子，我很自然地说这儿有个座位空着。
Clay's boastful rhymes, composed spontaneously, defined him as a forerunner of rap music.
克莱随意编出充满自夸的言辞，可以说他是饶舌音乐的先驱。
You needn't bespeak contempt, Linton: anybody will have it spontaneously at your service.
你用不着要求蔑视，林惇：你随时都可以叫任何人自然而然地瞧不起你。
As the crowd starts to get denser, it spontaneously organizes itself into what we call rivers.
但当人群开始变得很拥挤，它就会自发地形成我们所说的人流。
Search results clustering: Automatic grouping of documents into spontaneously labeled categories
搜索结果聚簇（Search results clustering）：将文档自动地分组进具有自然的标签的目录
I saw a poster that advertised a cheap bike hire scheme and I spontaneously decided to take the plunge.
偶然看到了一张出租廉价自行车计划的广告招贴画，我就不由自主的决定参加。
Science predicts that many different kinds of universe will be spontaneously created out of nothing.
霍：科学预言许多不同种类的宇宙会自发地从“无”中被创造出来。
Male fetuses were, in other words, being spontaneously aborted-presumably as a consequence of stress.
换句话说，男性胎儿发生自然流产——这可以推测为压力产生的后果。
Your inner child is the lively, free part of yourself which spontaneously ACTS and reacts from its emotions.
你的内在小孩是你活泼，自由的那一部分自己，它根据它的情绪自然的行动和反应。
Without cooling water, the irradiated nuclear fuel could spontaneously combust in an exothermic reaction.
没有冷水，辐照性核燃料就会在放热反应发生的同时燃烧。
Without cooling water, the irradiated nuclear fuel could spontaneously combust in an exothermic reaction.
没有冷水，辐照性核燃料就会在放热反应发生的同时燃烧。
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