找出一件具有挑战性的事情，付出百分之百的努力然后彻底松放。
所以，投入到一件具有挑战性的事情中去吧。学一门外语。参加在线大学课程。熟练掌握一种乐器。让大脑动起来。让这一年成为值得铭记的一年。
So, take up a challenging activity. Learn a foreign language. Take an online college course. Master a musical instrument. Work that brain. Make it a year to remember.
在医疗领域，解决网络安全威胁的同时还要减少信息安全风险是一件非常具有挑战性的事情。
In the medical field, to solve the problem of network security threats while reducing the risk of information security is a very challenging thing.
在中国的工厂里，限制加班时间是一件特别具有挑战性的事情，原因是有许多工人愿意加班，视其为提高自己收入的一种手段。这些工人的基本工资往往较低。
Limiting overtime is a particularly challenging issue in Chinese factories as many workers prefer overtime as a way to improve their often low base pay.
对于产权理论的研究和实践，无论从哪个意义上说，都是一件具有开拓性和挑战性的事情，因而，同时也是一件令人关注和振奋的事情。
The study and practice of the theory of proprietary right is, in all respects, pioneering and challenging, as well as exciting and exhilarating.
对于产权理论的研究和实践，无论从哪个意义上说，都是一件具有开拓性和挑战性的事情，因而，同时也是一件令人关注和振奋的事情。
The study and practice of the theory of proprietary right is, in all respects, pioneering and challenging, as well as exciting and exhilarating.
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