Sprengel pump
[化] 高真空泵
🧩 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
that I never could have done this book
我不可能完成这本书
I'm going to be sixty-one next Tuesday.
下星期二我将60岁了。
What kind of price did you have in mind?
你说多少呢？