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1·The new democracies face tough challenges.

新生的民主国家面临严峻的挑战。《柯林斯英汉双解大词典》

2·The future is going to be one that presents many challenges.

未来将会带来许多挑战。《柯林斯英汉双解大词典》

3·The government performed competently in the face of multiple challenges.

政府在面临多重挑战时表现得很出色。《柯林斯英汉双解大词典》

4·The company faces major challenges over the course of the next few years.

这家公司今后几年将面临重大的挑战。《牛津词典》

5·Harvard took the lead and remained unperturbed by the repeated challenges.

哈佛取得了领先地位，经过再三挑战后仍然镇定自若。《柯林斯英汉双解大词典》

6·Destruction of the environment is one of the most serious challenges we face.

环境的破坏是我们所面临的最严峻的挑战之一。《牛津词典》

7·She ran this shop for ten years before deciding to move on to fresh challenges.

她经营这家商店10年之后，决定罢手去迎接新的挑战。《柯林斯英汉双解大词典》

8·All her life, Kelly had stuck with difficult tasks and challenges, and triumphed.

凯利在一生中遭遇了种种艰巨任务与挑战，但成功了。《柯林斯英汉双解大词典》

9·Ms. Payne said she was honoured to accept the appointment and looked forward to its challenges.

佩恩女士说她很荣幸接受这一任命,并期待着它所带来的挑战。《柯林斯英汉双解大词典》

10·Whenever they reached their goal, they upped the ante, setting increasingly complex challenges for themselves.

每当他们达到了目标，他们就加高要求，为他们自己设置越来越复杂的挑战。《柯林斯英汉双解大词典》

挑战

1·The new democracies face tough challenges.

新生的民主国家面临严峻的挑战。《柯林斯英汉双解大词典》

2·The future is going to be one that presents many challenges.

未来将会带来许多挑战。《柯林斯英汉双解大词典》

3·The government performed competently in the face of multiple challenges.

政府在面临多重挑战时表现得很出色。《柯林斯英汉双解大词典》

4·The company faces major challenges over the course of the next few years.

这家公司今后几年将面临重大的挑战。《牛津词典》

5·Harvard took the lead and remained unperturbed by the repeated challenges.

哈佛取得了领先地位，经过再三挑战后仍然镇定自若。《柯林斯英汉双解大词典》

(1)meet the challenge迎接挑战；满足要求

(1)rise to the challenge接受挑战，奋起应付挑战

(1)take up the challenge应战

(1)challenge cup挑战杯；优胜杯；奖杯