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挑战性时间
1、time───vt.计时；测定…的时间；安排…的速度；n.(Time)人名；(俄)季梅；(英)泰姆；(罗)蒂梅；adj.定时的；定期的；分期的；n.时间；时代；次数；节拍；倍数
2、formidably challenging───极具挑战性
3、cognitively challenging───认知挑战
4、challengeable challenging───挑战性挑战
5、challenging task───具有挑战性的任务
6、challenging───v.要求；质疑；反对；向…挑战；盘问（challenge的ing形式）；adj.挑战的；引起挑战性兴趣的
7、time time time───时间
8、academically challenging───学术挑战
9、time after time───adv.多次，反复，不断地; 再三再四; 屡次三番；adv.不断地；反复；屡次
1、In the midst of what's being called a "challenging time, " two of Kate and Jon Gosselin's children have been expelled, PEOPLE reports.───在什么样的被称为“挑战的时刻，”凯特和JonGosselin的两个孩子中间被驱逐出境，人民的报告。
2、Thus, when a new baby is introduced into a family, it can be a challenging time for our beloved four legged creatures.───因此，当一个新的婴儿是引入一个家庭中，它可以是一个富有挑战性的时间，我们敬爱的四足动物。
3、Make it a realistic yet challenging time to work towards.───使它有一个真实的时间改变时间去工作。
4、President Bush says it is a challenging time for the U. S. economy, so he wants as much as $150 billion in tax relief to help.───美国总统布什说，美国经济遇到了挑战时期，因此他需要多达1500亿美元来帮助减税。
5、Well, it's true the market is undergoing a very challenging time.───好吧，的确市场正经历一场颇富挑战的时期。
6、Needless to say, it was a challenging time for many of us in the industry.───毋庸置疑，这是对全行业酒店管理者的一个极大的挑战。
7、But turning those findings into actionable ideas may take more energy than you've got in such a challenging time.───但是在如此具有挑战性时期，你的能量也许不足以将这些发现变为可执行的想法。
8、We are meeting at a challenging time for public health, full of uncertainties and real but unpredictable risks.───我们在公共卫生受到挑战的时刻相会，目前充满了不确定因素，面临真实而不可测的风险。
9、"It's going to be a challenging time for these companies, " he warned.───他警告说：“考验这些公司的时刻到了。”
1、This has been a challenging time for us all.