perseverance

n. 毅力,忍耐,不屈不挠

He is slow to learn, but shows great perseverance.

他学得慢，但是他表现出不屈不挠的毅力。

You need perseverance to win in politics and I doubt if he can go the distance.

在政治上, 需要矢志不移才能取胜, 我怀疑他能否坚持到底.