倘若这些预测并没能被事实印证，那么科学家们就要开始发愁了。

And if these predictions don't come out true, then this is something for the scientists to worry about.

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万圣节将至，爸爸妈妈们开始发愁，不知道糖果究竟能给他们的小精灵们带来些啥。

With Halloween around the corner, parents are fretting over what all that candy will do to their little goblins.

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