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
What was the weather like?
那边天气怎么样？
Be swift to hear, slow to speak.
多听少说。
Is it behind her chair?
在她的椅子后面吗？