🧩 词语组成解析
🗣️ 情景例句
He's busy preparing for class.
他忙着准备功课。
When did you buy the car?
你什么时候买的车？
Of course. When I got there, you had already started playing. So you didn't see me.
当然啦。当我到那里时，你们已经开始踢球了。因而你没看见我。