Doppio
（音乐术语）成倍，双重
🗣️ 情景例句
When is check-out time?
什么时候必须结帐和离开宾馆？
He's been out of a job for months.
他已经失业好几个月了。
You must look after it. Give it to Mr. Hu.
你一定要好好保管啊！让胡老师帮你拿着。