恒心在英语中可以翻译为“perseverance”，它来源于拉丁文“perseverantia”，意为“坚持不懈”。下面是一些例句：

Success comes to those who persevere.

成功属于坚持不懈的人。

She finally achieved her goal after years of perseverance.

她经过多年的坚持，终于实现了自己的目标。

He was rewarded for his perseverance with a promotion.

他因为坚持不懈而获得了晋升。