坚强意志的英文怎么说

坚强意志的英文是 "strong will" 或 "firm resolve"。

来源：

这个短语来源于拉丁文 "voluntas fortis"，意思是坚定的意志。在英文中，"will" 指的是意志力，而 "strong" 则表示坚强。

例句：

She has a strong will and never gives up, even when things get tough. (她意志坚强，从不放弃，即使遇到困难。)
He has a firm resolve to succeed, no matter what obstacles he may face. (他有坚定的成功决心，不管会面临什么样的困难。)