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
with my own two hands, practically.
差不多是独自完成的。
Don't cast out the foul water till you bring in the clean.
清水未来，莫泼赃水。
Which sweater do you like?
你喜欢哪种毛衣？