先前的一些研究表明，参与心理刺激的活动来挑战你的大脑可能会有所帮助。
Some previous studies have suggested that challenging your brain with mentally stimulating activities might help.
原则2:挑战你的用例目标
我要挑战你，坚固你向神的承诺。
挑战你的思想和身体。
展现出这个困难挑战你能应付处理。
Presented as a challenge that you have the skills to handle.
挑战你的想法。
他们在挑战你的学识哦。
如果你创造性的靠近这些挑战你的生活将充满了冒险。
If you approach each of your challenges with creativity then your life will be filled with adventures.
这个脑筋急转弯网站提供各种不同的游戏和琐事游戏挑战你的大脑。
This brain teaser site provides a variety of games and trivia to challenge your mind.
所以，一旦有人挑战你的权威，你会毫不犹豫地表达不满。
The spotlight is only so wide, though, so when someone tries to snag some of it, you won't hesitate to show your disapproval.
否认上帝的存在，也许你就是在挑战你邻居的深信不疑的信仰。
Deny the existence of God and you may be challenging your neighbours' most deeply held beliefs.
如果你的用例模型正在爆炸式增长，你应该挑战你的用例粒度。
If your use case model is exploding, challenge the granularity of your use cases.
这只是一个例子，为了下一个更多样化的挑战你应该看看下一个介绍环节。
This is a sample, but you should look at the next section for a much wider variety of challenges.
记住在这31天里，我是怎么挑战你，让你更留意自己的选择的？
Remember how I am challenging you to be more intentional with your choices during these 31 days?
记住在这31天里，我是怎么挑战你，让你更留意自己的选择的？
Remember how I am challenging you to be more intentional with your choices during these 31 days?
景色，坡度，风景和气味会让你的脑部进入训练的状态，同时挑战你的体能。
Scenery, hills, sights, and smells will help keep your head into the workout as well as challenge you physically.
即兴演说，等着被超越：挑战你自己，过一周没有数据计划的生活。
Soapbox, prepare to be climbed: Challenge yourself to go a week without using your data plan.
如果这些计划不足以挑战你的水平，试试这个高级新手5k训练计划。
If those programs don't seem challenging enough for your running level, try this advanced beginner 5k training schedule.
阅读莎士比亚，学习烹饪，用牙签造架飞机，这些都将挑战你的头脑，让你思考。
Reading Shakespeare, learning to cook and building an airplane out of tooth picks all will challenge your brain and give you something to think about.
因此，我们要不断的拓宽我们的视野，学习新的技巧，以及每天都积极的挑战你的头脑。
So broaden your horizons, learn new skills and challenge your mind every single day.
当你打破你的“舒适域”，尝试些你从没尝试过的东西，你不仅是在挑战你自己！
Whenyou break out of your comfort zone and try something you haven’t beforeyou not only challenge yourself.
当你沉浸于舒适之感时，你无暇挑战你周围的世界，甚至不愿积极参与其中，只想得过且过。
When you're comfortable, you're not challenging the world around you or even engaging with it; you're simply blending in.
记住在这31天里，我是怎么挑战你，让你更留意自己的选择的？好吧，这就是一个让你绝对受用的跳战。
Remember how I am challenging you to be more intentional with your choices during these 31 days? Well, this is one challenge you should definitely enjoy.
这可能是一个挑战—你能信任谁？
杂乱挑战：你冰箱上最古老的项目是什么？
即使削减了阅读清单，阅读还是会有挑战：你如何能专心阅读不被打扰？
Even with a pared-down reading list, reading can still be a challenge: how do you read without distractions?
面对维持和增加非洲的粮食生产这个巨大挑战，你有什么问题和答案？
What questions and answers do you have when facing the huge challenges of maintaining and increasing Africa's food production?
面对维持和增加非洲的粮食生产这个巨大挑战，你有什么问题和答案？
What questions and answers do you have when facing the huge challenges of maintaining and increasing Africa's food production?
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