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TOEFL BNC: 4241 COCA: 5184
atom
ætəm ˈætəm
Word forms: plural atoms
N-COUNT 原子 An atom is the smallest amount of a substance that can take part in a chemical reaction. 原子
  • A methane molecule is composed of one carbon atom attached to four hydrogens.

    甲烷分子由1个碳原子与4个氢原子构成。

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TOEFL BNC: 4241 COCA: 5184
atom

noun

ADJECTIVE | VERB + ATOM | ATOM + NOUN ADJECTIVEcharged, unstable帶電/不穩定的原子positively charged atoms帶正電的原子carbon, nitrogen, etc.碳原子、氮原子等VERB + ATOMsplit分裂原子the first person to split the atom第一個分裂原子的人ATOM + NOUNbomb原子彈
TOEFL BNC: 4241 COCA: 5184
TOEFL BNC: 4241 COCA: 5184
atom
Atoms and parts of atoms: alpha particle, anion, antiparticle...
Small amounts or pieces of something: bit, piece, fragment...

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