Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
Susan's teddy bear.
Susan送的泰迪熊
I'll leave for London if I finish my work today.
如果我今天完成工作，我就会去伦敦。
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？