Polysubstitution
多取代(作用)
🗣️ 情景例句
So now I'm taking a flight on Monday instead.
所以我现在要改搭星期一的班机走。
I'm sorry to keep on coughing.
我不停地咳嗽，真是抱歉。
He became mortally ill a few months before we had planned to go and,
就在他计划回国的前几个月，他突然身患绝症。