Reciprocating vacuum pump
[化] 往复式真空泵
🧩 词语组成解析
[医] 交互的, 往复的
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
Well, you'll have to ask her.
噢， 应当问问她。
A man is as old as he feels.
老不老，自己晓。
Sorry to hear that.
听到这个消息我很难受。