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
I held him closely.
我紧紧地抱着他。
No gains without pains.
不劳无获。
I'm afraid the item you substituted didn't work.
你这代替品恐怕不能用。