CNN news 2011-01-13 加文本

with regard to关于

例句：With regard to salary, I leave it to you.
      待遇方面，还是留待阁下决定吧。

2.On top of that, the CAT scans are showing that there is no progression of that swelling.

on top of除…之外

例句：He lost his job and on top of that his wife left him.
      他失业了, 不仅如此, 他妻子也离开了他。