Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
I was when I first came to the United States.
当我刚到美国来的时候是感到有点紧张。
That's easy for you to say.
你说的容易。
It is now being used indifferently for both.
人们现在正漫不经心地把知识用于这两个方面，