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。
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。
This one also happens spontaneously.
这个反应同样自发发生。
He offered to help us spontaneously.
他自发地提出帮我们。
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。”
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。
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。
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。
The second law, one of the most famous in physics, states that order cannot come about spontaneously.
热力学第二定律（物理学中最著名的定律之一）写道：不可能把热从低温物体传到高温物体而不产生其他影响。
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。
The river seems to generate trash spontaneously — even though I know that humans are the ones who leave it there.
那条河像是能自发地生产垃圾似的--当然我知道是有人把垃圾扔在那儿。
We create the sound with our vocal chords (hence the name), and usually laugh this way naturally and spontaneously.
我们通过声带(由此而命名)发出声音，这种笑通常是自然而本能地发出的。
In another win for the good guys, it appears that happiness is more likely to come about spontaneously than is sadness.
对于那些心地善良的人来说，会有另外的优势，他们自然而然地更有可能感受到的快乐多于悲伤。
She often laughs spontaneously, and her good humor breaks out as brightly as if it were a part of the sunshine above.
她常常发出发自内心的微笑，而且她那美好的情绪像天上一道明亮的阳光一样，常常流露出来。
These unwanted effects usually disappear spontaneously after 7-14 days or following a temporary reduction in the dosage.
这些副作用通常在7 - 14日之后，或者暂时降低剂量便自行消失。
These unwanted effects usually disappear spontaneously after 7-14 days or following a temporary reduction in the dosage.
这些副作用通常在7 - 14日之后，或者暂时降低剂量便自行消失。
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