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。
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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