Predual
预对偶
🗣️ 情景例句
My name is Wang Feng and I'm calling to cancel plane ticket.
我叫王峰，我想取消我预定的飞机票。
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
She won't have any trouble.
对她不会有什么困难的。