Autoxidator
自動氧化劑
??? 情景例句
Well, that's just what I'm going to say.
這正是我需要說明的。
It might be, I suppose.
我想可能是這樣。
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墻壁或山腰附近發(fā)出的喊聲，就會聽到回聲。