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
How long do you intend to stay?
你打算在这儿呆多久？
When I traveled to a foreign country, I was very aware that I was a Chinese.
当我出国旅行时，我非常明白自己是一名中国人！
Well, I suggest you see some of our national parks.
那么，我建议你参观一下我们的国家公园。