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
Are you traveling alone or whth a friend?
你是一个人旅行还是结伴旅游？
What is the longest river in this country?
这个国家最长的河是什么？
Of course. You may find these rather expensive.
当然。不过这些衣服你可能觉得相当贵。