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
Something borrowed, something blue.
借的东西， 蓝色的东西。
The dumped products
大批的垃圾
The secretary worked late into the night, preparing a long speech for the president.
秘书工作到深夜，为总统准备发言稿。