Contigency
a. 预防性
🗣️ 情景例句
Good morning, Dad.
早安， 爸爸。
This mountain range has many high peaks and deep canyons.
这条山脉有许多高山峰和深峡谷。
He said, Pauline is typing letters. She can't speak to you now!
他说：“波淋正在打信，她现在不能同你讲话！”