Reciprocating pump
[化] 往复泵
🧩 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
Could you get one for me, please?
麻烦你帮我叫一辆好吗？
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
Look at those people in the boats.
瞧船里的那些人！