Vacustat
真空计
🗣️ 情景例句
Let's see some action!
赶快行动起来吧！
Waste not,want not.
俭以防匮。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。