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
Don't you think you ought to call Pete
你不觉得应该打个电话给Pete
Early wed,early dead.
早婚者早夭。
It is well known that where the white man has invaded a primitive culture,
众所周知，凡是白人侵入原始文化的地方，