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Take plenty of breaks, because they offer a double bonus: the time off gives your mind a chance to do some preliminary consolidation and it also gives a memory boost to the learning.

多休息，因为休息有双重好处：休息能让你的大脑有机会进行一些初步的巩固，也能提高学习的记忆力。

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You may have to do a double take when looking at actresses Portia DE Rossi and Drea DE Matteo, who are, surprisingly, not related.

当你看到女演员波西亚-德罗茜和德瑞·迪·马特奥时，你肯定以为自己看重影了(眼花了)，因为她俩长的实在是惊人的相似。

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Some Costco customers do a double-take when they spy the seasonal aisles, quickening their step and pushing their trolleys past.

BBC: Is it too early to be Christmas shopping?

There is no worse feeling than waking up in the morning, rested from good night's sleep, and glancing at the clock, only to do a double-take: You're late!

CNN: Twelve amusing excuses for being late to work

MECCA, Saudi Arabia (CNN) -- One could almost feel the need to do a double-take at seeing the steadily emptying Grand Mosque in Mecca from outside our hotel room window.

CNN: Hajj diary: The great migration