1·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。
2·Does it meet the challenge?
它接受了挑战吗？
3·He had to meet the challenge and triumphed.
他面对挑战并取得了胜利。
4·His courage to meet the challenge encouraged me.
他迎接挑战的勇气鼓励了我。
5·He went to meet the challenge full of confidence.
他满怀信心地去迎接挑战。
6·She is exactly the right person to meet the challenge.
她是迎接挑战的最佳人选。
7·His courage to meet the challenge greatly encouraged me.
他迎接挑战的勇气极大地鼓舞了我。
8·Let's work together to meet the challenge of the 21st century.
让我们一起工作，迎接21世纪的挑战。
9·Will China also enhance its nuclear strike force to meet the challenge?
请问中方是否也会相应增强核打击能力来应对挑战？
10·Man has become sick and medical science is not able to meet the challenge.
人类变得越来越不健康，心理科学无法应对这样的挑战。