Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
I should be finished packing by then.
到那时候我应该已经整理好行李了。
He wants to change his appointment from Monday to Wednesday.
他想要把他的约会从星期一改到星期三。
The village is on a river.
它靠近一条小河。