名词原子; 原子能; 微粒，微量
名词
1. There\'s not an atom of truth in what he said.
他所说的没有一点是真话。
2. He couldn\'t produce an atom of evidence.
他一点证据也拿不出。
1. 原子
An atom is the smallest amount of a substance that can take part in a chemical reaction.
e.g. 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。
1. 原子
An atom is the smallest amount of a substance that can take part in a chemical reaction.
e.g. 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。
