Prerun
预试
🗣️ 情景例句
The costs of college get higher every year.
学费逐年增加，越来越贵。
As you all know, doing business is not an easy thing to do.
大家都知道，做生意并不是一件容易的事。
You mustn't move someone if they are badly hurt.
让她留在原地。如果有人受了重伤，你不能动他。