It is known that pollution is a long-term problem, and no single government can meet the challenge alone.

众所周知，污染是一个长期问题，没有任何一个政府能够单独应对这个挑战。

Does it meet the challenge?

它接受了挑战吗？

Let's work together to meet the challenge.

让我们一起努力，迎接挑战。

He had to meet the challenge and triumphed.

他面对挑战并取得了胜利。

His courage to meet the challenge encouraged me.

他迎接挑战的勇气鼓励了我。