抵抗不健康零食需要很大的意志力。

It takes great ___willpower to resist unhealthy snacks.

实现长期目标需要持续的意志力和自律。

Achieving long-term goals requires consistent ___willpower and discipline.

尽管疼痛，他通过完成马拉松展示了非凡的意志力。

He demonstrated remarkable ___willpower by completing the marathon despite the pain.