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
I'm sorry, I didn't mean to bother you.
对不起，真不想打扰你。
Not all butter that the cow yields.
母牛所产的未必全是黄油。
I think we are the first people here for hundreds of years. Maybe thousands.
“我认为几百年，可能几千年以来，我们是第一次来这里的人。”