In a short while I broke the cords that bound my left arm, and, by a strong pull, made loose some of the strings by which my hair was held fast.

一会儿，我挣断了捆绑我左臂的绳子，然后用力一拉，把捆着我头发的一些绳子弄松。

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Discover what controls how fast tiny molecular motors in our body pull through a single strand of DNA.

探究在我们身体里，通过一串dna，是什么在控制微型分子发动机，这些发动机运转得有多快。

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The other hypothesis is that the dose is an act of blatant favouritism, aimed primarily at sons by mothers who are attempting to pull a fast one on their potential daughters-in-law.

ECONOMIST: Animal behaviour

The problem with Nato is that it is fast becoming a multi-role organisation whose diverse activities threaten to pull it in two different directions.

BBC: Analysis: Nato seeks new roles

With the Kindle Fire we are back to the toy-boy ethos and army boot black plastic in a pull tear fast food carton.

FORBES: Will The Kindle Fire Burn Apple?