屡败屡战

你是如何屡败屡战坚持下来的？

How did you manage to persevere despite repeated failures?

屡败屡战才能战无不胜

Only by keeping fighting despite setbacks can one become invincible.

他屡败屡战,获得最后的胜利

He kept fighting despite repeated defeats and won the final victory.

不要再考一次,屡败屡战屡战屡败恶性循环

Don't take the exam again; it's a vicious cycle of trying, failing, trying again, and failing again.