Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
There are more foolish buyers than foolish sellers.
愚蠢的买主多鱼愚蠢的卖主。
the other the lack of freedom of the individual research worker.
二是研究人员缺乏个人自由。