on the top of 是指在具體物體的頂部
如：
The pagoda stands alone on the top of the hill.
那寶塔孤零零地坐落在山頂上.
The skin exactly on the top of my head pains.
我頭上正好位于頭頂?shù)哪菈K皮膚很痛.
而 on top of 即可以表示在有形的物體上方,也可以表示不具體的某事物的頂端,而且還具有其它的意思.如
There is a bird on top of the house
房子頂上有只鳥.
I am on top of the world.
我高興到了極點(diǎn).
This work is getting on top of me.
這件工作我無法勝任了.
On top of this, several other benefits are being offered.
除此以外,其它幾項好處正在出現(xiàn)