Cascade rotary pump
[化] 级联泵
🧩 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
In a word, we'll provide you with all good service.
我们将为你们提供最好的服务。
We can't draw well.
我们不能画那么多。
Were there any telephone messages for me while I was away?
我外出期间有我的电话吗？