Molecular number
[化] 分子序; 分子序数; 原子序数和; 分子内原子序数和
🧩 词语组成解析
🗣️ 情景例句
My boss expects me to work day and night.
我的老板恨不得我一天到晚地工作。
My little brother takes a bath before he goes to bed at night.
在他晚上睡觉以前，我的弟弟要洗一下澡。
Thus the rods, by falling, and by the direction in which they fell,
木棒倒下的多少和倒下的方向