While not all scientists foresee a food crisis noting that large-scale bee die-offs have happened before this one seems particularly baff ling and alarming.

但并非所有科学家都预见粮食危机，他们认为过去也曾发生大规模的蜂群死亡事件，但这次似乎特别令人困惑不解和震惊。

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While not all scientists foresee a food crisis, noting that large-scale bee die-offs have happened before, this one seems particularly baffling and alarming.

并非所有的科学家都预测会发生一起食物危机，他们指出大规模蜜蜂死亡以前也发生过，这次似乎尤其令人迷惑不解和警告。

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