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
You can do it.
可以这样做。
I'm sorry. I'm engaged now.
对不起，我现在正忙着。
There are some pictures in the room.
客厅里有几幅画。