Forevacuum
[化] 前级真空
🗣️ 情景例句
If I have time, I enjoy camping in the wild with my friends.
若时间许可，我爱和朋友到野外露营。
This is a record player.
这是一台电唱机。
and won't suffer sleepless nights over share prices.
不会因股票价格的浮动而夜不能眠。