Airvoid
真空
🗣️ 情景例句
I have spent the last five years working specifically in this field.
过去五年我专门在这个领域里工作。
On coming home, he switched on the television.
他一到家就打开了电视。
Tickets, please. May I see your ticket please, madam?
请出示车票。夫人，请问我可以看看你的车票吗？