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
I was a member of the debate team.
我是辩论队的成员。
A little spark kindles a great fire.
星星之火，可以燎原。
When he landed near Dover, the first person to greet him was a local policeman.
当他在多佛着陆后，第一个迎接他的是当地一名警察。