他的意志力非常强壮。

His willpower is very strong.

他的病情削弱了他的意志力。

His illness has weakened his willpower.

戒烟需要很大的意志力。

It takes a lot of willpower to quit smoking.

她的意志力让她看起来不可战胜。

Her willpower makes her seem invincible.

她的意志力帮助她戒掉了坏习惯。

Her willpower helped her quit bad habits.

这次挑战是对我们意志力的考验。

This challenge is a test of our willpower.

他通过意志力克服了所有困难。

He overcame all difficulties through willpower.

她有我见过的最强的意志力。

She has the strongest willpower I have ever seen.

她依靠她的意志力完成了马拉松。

She relied on her willpower to finish the marathon.

她的意志力足以抵挡任何挑战。

Her willpower is strong enough to withstand any challenge.