Forepump
前置真空泵, 预抽真空泵
🗣️ 情景例句
His yearly salary is in seven digits.
他的年薪是7位数。
My hobbies include tennis and reading.
我喜欢打羽毛球、看书。
The language which the Maori speak is related to the languages of Tahiti and Hawaiil.
毛利人讲的语言与塔希提岛和夏威夷的语言有同源关系。