Reversing pump
[化] 换向泵
🧩 词语组成解析
a. 回动的\\n[化] 换向
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
He has a white-collar job.
他做的是白领工作。
How much is it to rent an economy car?
租一辆经济车要多少钱？
We can negotiate the unit price for large orders.
如果大量订购，单价可以再谈。