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1、英文介绍世界奇闻异事
英文介绍世界奇闻异事
Every person has nearly 400,000 radioactive atoms disintegrating into other atoms in his or her body each second. But there's no need to worry about falling apart. Each body cell contains an average of 90 trillion atoms—225 million times that 400,000.
radioactive/?re?di????kt?v/ adj. 放射性的
atom 原子
每个人的身体中每秒钟有近40万个放射性原子蜕变成其它原子。不过，你用不着担心身体会裂开。人体每个细胞平均有90万亿个原子，是40万个原子的22500万倍。知识点：
1、radioactive /?re?di????kt?v/ adj. sending out harmful radiation caused when the nuclei(= central parts) of atoms are broken up 放射性的；有辐射的
Uranium and plutonium are radioactive. 铀和钚具有放射性。 radioactive material / waste 放射性材料/废弃物2、disintegrate /d?s??nt?ɡre?t/ v. to break into small parts or pieces and be destroyed 碎裂；解体；分裂
The plane disintegrated as it fell into the sea. 飞机坠入大海时解体了。The old iron hinge rusted and eventually disintegrated [=crumbled] into dust. 旧的铁合页生锈并最终碎裂成了粉末。3、there's no need to do sth. 做……没有必要
There is no need for you to get up early tomorrow. 你明天不必早起。一点一滴跟李老师学英文，感谢您的关注，点【赞】和【转】【发】[谢谢]
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