Forvacuum
预(抽)真空
🗣️ 情景例句
The cassette player and the tapes.
卡式录音机和录音带。
Better poor with honour than rich with shame.
穷得光荣，胜过富得可耻。
Our standard order is 500cases at a time.
我们的标准订量是一次500箱。