是你的智慧一举解决了我们无法解开的难题。
It is your intelligence that cuts the Gordian knot which we cannot untie.
我无法理解开发人员为何用下方所示方式编写存在检查(existential check)，但是因为他们这样做了，所以我们就来讨论它。
I cannot fathom why developers write existential checks in the way I show below, but since they do, I will discuss it.
我们生活的世界里充满了谜团， 这些谜团即使是当今发达的科学技术也无法解开。
The world we live in today is full of mysteries unsolved even by today's advanced science and technology.
数千年来，我们一直认为动物与人类有著某种程度的相似，但是总是无法证明，现在这些谜题已经解开了，而答案就在这本四十八页的书里。
For thousands of years, we've guessed that animals share many qualities with us, but until recently it's been impossible to prove this is true. Now the secret life of animals is revealed. 48 pages.
数千年来，我们一直认为动物与人类有著某种程度的相似，但是总是无法证明，现在这些谜题已经解开了，而答案就在这本四十八页的书里。
For thousands of years, we've guessed that animals share many qualities with us, but until recently it's been impossible to prove this is true. Now the secret life of animals is revealed. 48 pages.
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