I'll keep on trying, until my dying day.

我会继续努力，直到我死的那一天。

youdao

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

我纵然失败，仍会继续尝试下去。

youdao

He often encouraged himself by saying "If I keep on trying, I'll make even greater progress."

他经常鼓励自己说，“如果我继续努力，我会取得更大的进步。”

youdao

And so I'm hoping they'll keep the numbers down and that will allow the police to concentrate on trying to identify the ringleaders who all got away last year.

BBC: News Online