Reserv(ed) pump
[化] 备用泵
🧩 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
What'll the weather be like tomorrow?
明天的天气怎么样？
I'm going to buy five pieces.
我要买五片。
What do you do?
你做什么工作？