Commutants
换位矩阵
🗣️ 情景例句
Just got back. It's good to see you both again.
刚刚回来。真幸运再次见到你们二位。
Hang up one's fiddle when one comes home.
在外谈笑风生，在家闷闷不乐。
Well,you mustn't play in the road.It's dangerous. A car may hit you.
嗯，你不可以在路上玩球。那是很危险的。汽车会撞着你。