Variable delivery pump
[化] 可变排量泵
🧩 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
Would you like to sign the contract now?
你现在要签这合同吗？
The only feasting I do these days is in my dream.
这几天我只能在梦中享受山珍海味了。
The man opened it.
楼上人打开门。