As for the pollen, Sugden says it has never been accurately dated and may come from a much earlier clement period.
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As for the pollen, Sugden says it has never been accurately dated and may come from a much earlier clement period.
至于花粉，萨格登说从未有人精确地测定过它的年代，也许它是源于更早的温和时期。
These industrious little insects are the world's greatest pollinators, carrying a dusting of pollen from flower to flower as they gather nectar for their hives.
这些勤劳的小昆虫是世界上最大的授粉者，在它们为蜂巢收集花蜜的过程中，带着花粉尘掠过一个又一个花朵。
The National Allergy Bureau recognizes Children's Mercy Hospital as a certified counting station for pollen and mold.
国家过敏局认识到作为一个合格的花粉和霉菌计数站的儿童慈善医院。
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