Minipump
小型真空泵, 微型真空泵
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
he has a fresh approach.
他有一个新的处理办法。
You can kill two birds with one stone.
一举两得。