Of course movies can now sometimes double their take with DVD and television sales.

当然，如今的电影可以通过DVD和电视来多次观看。

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I changed little from childhood, except for mysterious eyelid, sometimes single sometimes double.

我从小到大真的是没怎么变化。除了神秘莫测的眼皮时单时双。

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Sometimes you need to escape a double quote.

有时候是双引号。

哈佛公开课 - 计算机科学课程节选

"Clients expect yield at a shorter time frame, and sometimes double-digit returns, " said Jeffrey Tang, a director at consultants Towers Watson.

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Doing so allows you to double, sometimes triple, your portions and still lose weight, says Rolls.

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When the memory returns, it's like a blow to the stomach that sometimes leaves me bent double.

BBC: Living with the effects of cancer