at the front of \in the front of 什么区别?

问题描述:

at the front of \in the front of 什么区别?

in front of在…前面,如:
There is a tree in front of the house.房子前面有一棵树。
He sits in front of me.他坐在我前面。
in the front of 在…前部(在某范围以内)
如:There is a big desk in the front of the classroom. It's for the teacher.
教室的前部有一张大桌子,是老师用的。
(在教室范围里面)
at the front of 在…前部与in the front of同意
at…强调“前部的某一点” in强调在…范围的前部
如:There is a man boating at the front of the boat.船的前部有一个人在划船

都是在前部,内部,
如在房子的窗前,向外看.人在内.
但个人感觉,
at the front of与
in the front of
也有差别.
in 强调立体空间.
at 强调平面空间.