Preconcentrator
[化] 预浓缩器
🗣️ 情景例句
Three. Besides Chinese, my mother tongue, I can also speak English and French.
三种，除了我的母语中文外，我还会讲英语和法语。
More haste, less speed.
欲速则不达。
No, we didn't fix anything.
不，我们没有决定任何事情。