Vsb
残余边带
🗣️ 情景例句
Fine. How much would you like to exchange, sir?
好的。您要兑换多少呢，先生？
He's concentrating on learning English.
他集中精力学英语。
He can't make it today. He has to stay at home.
他今天不行了。他得呆在家里。