Proporting pump
[化] 比例泵
🧩 词语组成解析
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
Havefun!
开心点。
Keep thing seven years and you will find a use for it.
备而不用。
I hired a car the day after landing and bought a comprehensive book of maps,
我下飞机后租了一辆车，并买了一本详尽的地图册。