Building a perfect recommendation engine is a very complex task.

构建一个完美的推荐引擎是一件非常复杂的任务。

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Have this set product, just like with a treasure you can always carry library, for you and your family to building a perfect reading space.

拥有了本套产品，就如同拥有了一座可以随身携带的图书馆，为您和您的家庭打造一座完美的读书空间。

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Our building even had a tiny lift with a female voice that said, "Ouverture des portes," in perfect French.

我们住的那栋大楼甚至还有一个很小的电梯，电梯里有一个女声用优美的法语说道“门已开启”。

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And each of us must do our part to continue on this never-ending journey towards building a more perfect union.

WHITEHOUSE: President Obama Signs 21st Century Communications & Video Accessibility Act | The White House

But this year is building up to be a perfect storm of negative publicity with the lockout and the new lawsuit from Antonick.

FORBES: Madden Creator Sues Electronic Arts for Millions in Royalties

And whether you stay in a tiny house permanently or end up building, you've got a perfect guest cottage that you can share with friends, family, sell or rent out.

CNN: Tiny homes hit the big city