Once in the second grade, our teacher had each of us race across the monkey bar.

二年级的时候，老师让我们每个人比赛越过攀爬架。

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Even when they bar us irrevocably from attaining a goal, the lessons we learn from our mistakes help us to make new and better goals.

即便当错误不可避免地禁止我们达到目标，我们从错误中吸取的教训也能帮助我们设定一个新的更好的目标。

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Bar codes, familiar to us all as the black and white rectangular mark that enables products in a supermarket to be tracked, represent data using the spacing of parallel lines.

条形码就是我们大家都熟悉的超市中用来跟踪商品的那些黑白色相间的长条标记，它利用这些黑白色平行线的间距来表示数据。

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He attached an amendment to a budget bill that would bar the US from transferring the advanced weapons platforms to Egypt.

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The bartender, Joe, and the couple sitting next to us at the bar explained (in delightfully thick Long Island accents) that the town really comes alive in the warmer months.

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On one hand, the length was essentially the same as each of our steps, enabling us to use the bar itself to easily vacuum the stairway.

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