Vacuum preconcentrator
[化] 真空预浓缩器
🧩 词语组成解析
[化] 预浓缩器
🗣️ 情景例句
Oh, Richard! That's wonderful, but--
噢， Richard ，那真是太好了， 可是……
Why did you sit up so late?
为什么你这么晚还不睡觉？
He was a shrewd and wealthy businessman, but most people in the town hardly knew anything about this side of his life.
他是个精明能干、有钱的商人，但镇上大部分人对他生活中的这一个方面几乎一无所知。