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
Relax! Be patiend and enjoy yourself.
放松点！要有耐心，并让自己快乐！
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
All these articles are best selling lines.
所有这些产品都是我们的畅销货。