因为我们知道人类能做什么，不能做什么，也知道人类的构造是怎样的，人类身体的极限在哪里，所以，这些图像的确是对人智力的挑战，它们会让人产生不可思议的幻觉。
We all know what people can and can't do, how they are built, what the limits of the human body are, yet some images challenge the brain and create illusions.
因此，对于人脑这样一件不可思议的艺术品，每天对他来一点简单的小挑战可以让他保持新鲜感和充满活力。
The human brain is an incredible work of art and providing it with simple challenges will keep it fresh and alive.
当你听到这首歌的时候，你不由自主的开始移到。如果你在寻找挑战，尝试跟着它的节奏--它不可思议的快！
You can't help but start moving when you hear this song. If you're looking for a challenge, try keeping up with it -- it's incredibly fast!
我在这里想说的与棒球联赛没有多大关系，而是想讲当你遇到不确定或很有挑战的事时，怎样才能具备人类精神和不可思议的能力，继续前进。
My point here has less to do with little league baseball and everything to do with the human spirit and its amazing capacity to keep pushing forward when things are uncertain or challenging.
历史告诉我们，科技、资本集中和大脑的结合具有不可思议的力量，能够应对所有的挑战，尽管悲观主义者对此表示怀疑。
History suggests the magical combination of technology, capitalism and brains is capable of meeting every challenge - despite the doubts of the pessimists.
一组不可思议的照片在南非国家公园第一次被记录下来，一只美洲豹接受挑战并打败了最可怕的爬行动物之一鳄鱼。
A series of incredible pictures taken at a South African game reserve document the first known time that a leopard has taken on and defeated one of the fearsome reptiles.
如果你的另一半是个爱读书的人，你真的很幸运，因为他们拥有不可思议思维、想象力、机智和内心，他们能够带给你从未体验过的挑战。
If you are with a reader, consider yourself lucky. With an incredible mind, imagination, wit and heart, they will challenge you quite unlike anyone else has before.
如果你的另一半是个爱读书的人，你真的很幸运，因为他们拥有不可思议思维、想象力、机智和内心，他们能够带给你从未体验过的挑战。
If you are with a reader, consider yourself lucky. With an incredible mind, imagination, wit and heart, they will challenge you quite unlike anyone else has before.
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