珊文提出的问题是对世界领导人们的一个挑战——为什么掌管世界的成年人不更加关心世界和生活在世界上的人们。
Severn's questions were a challenge to the world's leaders—questions about why the grown-ups who run the world don't take more care of it and of the people who live in it.
那不勒斯(佛罗里达州)的雷彻尔·本德尔今年31岁，正在写一个名叫“与躁郁症相伴的怀孕生活”的博客，她认为失眠可能是对想要尝试母乳喂养的母亲构成巨大挑战。
Rachael Bender, 31, of Naples, Florida, who writes a blog called My Bipolar Pregnancy, realized that losing sleep would be a huge challenge in trying to breast-feed.
因此就需要找出一种不同的记录方法，但面临的挑战是要在这么一个私生活行为上取得准确可靠的数据。
Hence the need to find a different way to record it, she said, but the challenge was getting reliable data on a private activity.
应用推荐