如果我愿意，一只手背在后面也能打败你。
I could lick you with one hand tied behind me, if I wanted to.
琳娜微笑着把手背在后面，因为他已经计划好了整个比赛的方案，他还深思熟虑了几遍。
Leanna, who had her hands behind her back smiled a BIG smile because she had planned the course already and she had practised it many times.
有人走路低着头移开目光，以避免看某些穿着清凉的女性，将手背在后面就不会擦碰到他人。
Some walk with their heads down and eyes averted, to keep from looking at women who might be scantily clothed, their hands behind their backs so that they won't brush against one.
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