当你足够强大时，常用的表达方式是 "when you are strong enough"。这个表达方式源自英文，表示当某人的能力、状态等达到足够强大或充分发挥时。
例句：
When you are strong enough, you can pft weights to improve your physical strength. (当你足够强壮时，你可以举重来提升你的身体力量。)
When you are strong enough, you can face your fears and overcome challenges. (当你足够强大时，你可以面对你的恐惧并克服挑战。)
例句：
When you are strong enough, you can pft weights to improve your physical strength. (当你足够强壮时，你可以举重来提升你的身体力量。)
When you are strong enough, you can face your fears and overcome challenges. (当你足够强大时，你可以面对你的恐惧并克服挑战。)