He says that brain change is strongest when a) you are interested in and like what you are learning, b) you are in control of what you learn and c) you get challenging tasks that make you think hard.
他说，当你 a）对你正在学习的东西感兴趣并且喜欢它，b）你能控制你所学的东西，c）你接受有挑战性、让你努力思考的任务时，大脑的变化是最剧烈的。
The work is not nearly as intellectually challenging as what they will face in the OOAD class, but it lays the groundwork for team collaboration, which is a major learning goal.
在智力挑战层面上这一工作与他们将在OOAD课上面对的东西联系并不密切，但是它为团队协作奠定了基础，这是一个主要的学习目标。
Parkour is a challenging and demanding discipline, therefore learning Parkour must always be approached with sensibility and caution.
酷是一项充满挑战和危险的体育项目，因此学习跑酷时必须时刻保持清醒和敏感。
Learning to manage stress is a challenging life skill.
学习管理压力是一个富有挑战性的生活技能。
The learning environment for SVT testers is very challenging.
SVT测试人员的学习环境非常具有挑战性。
If you have ever moved to a new city, or even better, to a new country, alone, learning how to make it on your own, you will know how challenging it is to build a place where you feel like home.
假如你有过独自一人搬迁到一个新的城市，甚至更好，一个新的国家，去学习如何自立更生的体验，你就会明白，白手起家是一件多么富有挑战性的事。
To love life is to continually be learning and challenging yourself.
热爱生活就是要不断学习并挑战自我。
This is achieved through learning that is identified to be engaging, relevant, challenging and significant.
这是通过学习，确定参与，相关的，具有挑战性的和重要的。
Kelly: I guess the easy way is also the lazy way. She's not really learning anything, and she's not challenging herself.
凯莉：我想最容易的办法也是最懒的办法。她没有真正学到东西，而且她没有挑战自己。
I think that learning a foreign language is quite challenging.
我认为学外语很具有挑战性。
I'm learning Mandarin Chinese because it is apparently a very challenging language to learn.
我在学普通话，因为它显然是一门在学习上非常具有挑战性的语言，。
Life is very busy and extremely challenging for me now but to me, I think it's very meaningful because I am learning a lot and experiencing a lot of things!
生活是非常忙碌，非常具有挑战性，但我现在对我来说，我觉得这是非常有意义的，因为我学习了很多，经历了很多事情！
Life is very busy and extremely challenging for me now but to me, I think it's very meaningful because I am learning a lot and experiencing a lot of things!
生活是非常忙碌，非常具有挑战性，但我现在对我来说，我觉得这是非常有意义的，因为我学习了很多，经历了很多事情！
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