On top of that 除此之外
The unemployment rate is rising, and on top of that, factory orders are down.
Top n. 顶部
There are many trees at the top of the mountain.
Top n. 上衣
I need a top to go with these trousers.
Over the top 太过分
I think the decorations are a little over the top.
At the top of one's lungs
Sing at the top of your lungs so that the people in the last row can hear you!