challenges的发音:
英 [ˈtʃælɪndʒɪz] 美 [ˈtʃælɪndʒɪz]
challenges是challenge的复数形式,challenge的意思:
n.挑战;质疑;质询;挑战书
v.考查;盘问;对…怀疑(或质疑);拒绝接受
现在分词:challenging 过去式:challenged
例句:
1.I was finding it a challenge to keep another campaign commitment: cutting the White House staff by 25 percent.
我发现要兑现我的另一个竞选承诺也不容易:把白宫的工作人员的人数减少25%。
2.That was why the Delegation was pleased to see that WIPO had taken up the challenge, in the previous years.
这就是代表团很高兴看到WIPO在过去几年中迎接了该挑战的原因。
3.He said it was a major challenge to get world leaders to take the tourism industry seriously.
他表示,让世界各国领导严肃对待旅游业,是一项重大挑战。