Did he give up or keep on trying?

他是放弃了，还是在继续努力？

Keep on trying until you succeed.

继续努力直到成功。

We must all keep on trying.

我们大家必须继续努力。

You just keep on trying.

你只需要继续尝试。

Even though I fail, I'll keep on trying.

我纵然失败，仍会继续尝试下去。