A molecule is the smallest amount of a chemical substance which can exist by itself. 分子
noun [物质名词] 分子，摩尔；少量，一点儿；微小颗粒，微粒
The DNA molecule is compounded from many smaller molecules. 脱氧核糖核酸分子是由许多更小的分子组成的。
mol(摩尔， 克分子) + ecule → 分子
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- ...the hydrogen bonds between water molecules. …水分子之间的氢连接。
- Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water. 两个氢原子和一个氧原子结合组成一个水分子。