I can't go back on my word.

我不能食言。

4 days. I'm going back on Friday.

4天，我周五回去。

So how apt were you to go back on that horse after that?

那你是怎么骑着那匹马回去的？

Right now, it's going back on to land.

现在，它又回到了陆地上。

You backtrack. You go back on what you said.

你出尔反尔。你说过的话又反悔了。

I'm going back on the 30th of July.

我7月30日回去。

Yahoo wants to go back on the public market.

雅虎希望重返公开市场。

You need to go back on your meds properly.

你要以恰当的方式重新开始用药。

But he says he's not going back on the appropriation of land.

但是他也表示，他不会推翻重新分配土地的决定。

And that he never went back on his social network profiles.

而且他再也没有回他的社交网络资料。