- 释义:
- n. 原子;微粒,微量
- 构词:
- a不+tom切,割→不能切割的小东西
- 例句:
-
The neutrons and protons form the core of the atom.
中子和质子构成了原子核.
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For many years the atom was believed to be indivisible.
在过去有很多年原子一直被认为是不可分割的.
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When an atom of U 235 is split, several neutrons are set free.
一个铀235原子分裂时, 释放出几个中子.
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