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
Keep the meter running.
继续打表吧。
He learns Japanese every day.
他每天都学日语。
Good idea! Shall we ask Jim?
好主意！要邀请吉姆吗？