Nitralising
硝酸钠溶液浸渍净化法
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
My brother's in the army.He was just promoted to the rank of major.
我的兄弟在军队工作.他就被提拔为少校。
There is hope so long as he is with us.
只要他在就有希望。