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
Do you want to see the winter jacket on me, Susan?
你想看看我穿上冬季的夹克怎样吗， Susan？
Please count the chairs in that room.
请在那个房间里数一下椅子。
Yes, we must.
是的，一定得请。