at the top of STH这是在什么什么的顶部么?为什么我感觉在顶部应该是用ON的?

at the top of STH这是在什么什么的顶部么?为什么我感觉在顶部应该是用ON的? 一只鸟站在房子的顶部.翻译成英语.是用at the top of还是on the top of? at the top of the at the top of the at the top of the 英语-是at the top of the mountain还是on the top of the mountain at the top of 用法 at the top of every at top of the world on the top of 和at the top of区别? on top of on the top of at top of above 这三个有什么区别on top of on the top of at top of above 有什么区别 bottom topat the bottom of sth和on the bottom of sth有什么区别?on the top of sth和at the top of sth和on top of sth有什么区别?一定要有把握,越详细越好,只告诉我一部分也可以.最好能有例句.宁缺毋滥~ on top of 与 at the top of 区别 on the top of,at the top of,on top of ,at top of,有什么区别? in the top of 和at the top of 和 on the top of区别 At the top of the world on the top of和on top of和at the top of有什么区别 on top of与at the top of体会on top of the hillat the top of one`s voice