in the corner,on the corner,at the corner有什么区别?

题目

in the corner,on the corner,at the corner有什么区别?
这个问题确定无聊,
我要这三个短语在用法上区别 ,意义上也行.

答案

in表示在某一范围内角落 The blooms are in the corner of the room.on表示在拐角(外面)上 The box is on the corner of the desk.at表示在拐角周围 Be careful when you are at the corner of the street....