Bicycles, once a rare sight, have suddenly become popular-and expensive.

曾经在街上少见的自行车现在突然变得流行了起来，并且价钱昂贵。

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But in these days of low yields, nonagency RMBS have suddenly become popular.

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That separation has suddenly become popular in Israel points to a larger problem a too-eager search for the quick fix.

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Article 41 had suddenly become a popular law in government offices, I found.

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