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
I am happy to do it for you.
我很高兴为你们做这件事。
Mr. Green is a member of the faculty.
格林先生是大学教员。
Yes, I'm sorry about that.
是的，那件事我很抱歉。