Perhaps its because we can't afford to do it.

或许是因为我们无法承受这样做。

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Its because our minds were designed to fill gaps and so we try to match the things that we see or hear with the databases in our minds.

这是因为我们的心理就是被设计用来填补空白的，我们设法将我们所见所闻的事物跟头脑中的数据库做匹配。

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Movie music can be made memorable because its themes are repeated throughout the film.

电影音乐可以制作得令人难忘，因为其主旋律在影片中反复出现。

《柯林斯英汉双解大词典》

His mind had lost its sharpness. This did not worry Buchanan, because he had planned to be his own foreign minister.

VOA: special.2009.05.14

But it's a difficult claim because even as Milton makes this claim, he manages to undermine its force.

但这是困难的，因为即便是弥尔顿做出了这一宣告，他也打算降低它所蕴含的威力。

耶鲁公开课 - 弥尔顿课程节选

The butterfly is the perfect work of art because it is both a representation and alive. It has eyes on its wings.

这只蝴蝶是一个完美的艺术作品,因为它不但是画像，也是,鲜活的，它的翅膀上有眼睛。

耶鲁公开课 - 1945年后的美国小说课程节选

An assumption that is often made not because its valid but because its the best we can do.

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Or perhaps its because none of them could get acquired as private companies?

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The ridge is rarely attempted because of its steepness and because its position leaves it exposed to high winds and the risk of avalanche.

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