Naphthisodiazine
二氮杂菲
🗣️ 情景例句
I still don't understand what you mean.
我还是弄不懂你是什么意思。
Reckless youth makes rueful age.
虚度青春，悔恨无已。
This company is our regular customer.
这家公司是我们的老客户。