Two Bees and a Flower 二只蜂和花
Colony collapse disorder first struck honey bees in the United States in late two thousand six.
VOA: special.2009.09.15
Over the next two years, beekeepers lost more than one-third of their honey bees.
VOA: special.2009.09.22
University of Illinois Professor May Berenbaum says it appears that bees could deal with one or two viruses at the same time, but not three or four.
VOA: special.2009.09.22
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