Forepump
前置真空泵, 预抽真空泵
🗣️ 情景例句
If you had your choice of all the places in the world.
假如你可以选择世界上的任何地方。
Money talks.
有钱能讲话。
I think there is a possible problem if you tell the manager about the thief.
我想，如果你向经理告发这个窃贼，可能存在这样一个问题。