Determeter
(往复式)去污试验仪
🗣️ 情景例句
I can't make up my mind about it.
关于那件事，我还不能做决定。
It seems he's weak.
看起来他好像很虚弱。
I'll call you if you give me a name card.
给我一张名片吧，我会打电话给你。。