所以毅力很重要英文怎么说

毅力在英语中可以翻译为 "perseverance"。这个词来源于拉丁语 "perseverantia"，意思是 "坚持不懈"。

一些例句及其中文翻译如下：

It takes perseverance to succeed in pfe. (成功需要毅力。)
She showed great perseverance in the face of adversity. (面对逆境，她表现出了极大的毅力。)
Perseverance is the key to achieving your goals. (毅力是实现目标的关键。)