A1
a. 第一等的
🗣️ 情景例句
If you watch carefully you will see how to do it.
你若细心观察，就会知道怎么做这件事。
I really feel bad about it. Let me buy you a new one.
我真为这件事感到遗憾。我给你买一本新的吧。
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。