关于坚强的意志，以下是一些英语例子：

I hope you have a strong stomach.

我希望你有坚强的意志。

You need to have a strong stomach to be an ambulance driver.

当救护车司机你一定要有坚强的意志。

I have a strong stomach. After all, they are just protein.

我有坚强的意志。毕竟，它们只是蛋白质。

A man's strength depends not on how hard his shell is, but on how deep his scar is.

一个人的坚强不是看他外壳有多硬，而是看他的疤痕有多深。

The most terrible enemy is the lack of strong faith.

最可怕的敌人就是没有坚强的信念。

At first I pretended to be strong, then I was really strong.

刚开始是假装坚强，后来就真的坚强了。

When all else is lost the future still remains.

就是失去了一切别的，也还有未来。

Keep on going never give up.

勇往直前，决不放弃!

There is no garden without its weeds.

没有不长杂草的花园。

The best preparation for tomorrow is doing your best today.

明天的最好准备就是今天尽力而为。

We shall learn rock's firmness.

我们应当学习岩石的坚定。

Thank them for teaching me tenacity.

感谢他们教会我顽强。

Only those who persistently pursue and gain the greatest joy are the victors.

只有执着追求并从中得到最大欢乐的人，才是胜利者。

He who is not afraid of pain is tenacious, and he who is not afraid of death is even more so.

不恐惧痛苦的人是顽强的，不恐惧死亡的人更顽强。

Don't look back. There's light ahead.

别往回看啦，前方有光。

Better to carry the lamp than to complain in the darkness.

抱怨身处黑暗，不如提灯前行。

Nothing is impossible!

没有什么不可能!

Even if the whole world denies me, I still believe.

即使全世界都否定我，我仍然相信。

这些例子涵盖了不同的表达方式和情境，展示了坚强的意志在不同语境中的具体应用。希望这些例子对你有所帮助。