By offering fly-through hospitality, the trees win the prize of a brush with a pollen-covered bee and the chance of cross-pollination with another tree.
杏树为蜜蜂提供了丰盛的食物和落脚休息之地，其回报是浑身沾满花粉的蜜蜂与花朵的亲密接触，因而得到与其他杏树异株授粉的机会。
The bee dances for some time. And the length of its dance tells the other bees how far they must fly to reach the flowers.
蜜蜂跳舞有一段时间的话，那他跳舞的时间长短就告诉其他蜜蜂要飞的多远才能看到那些花。
Bee fly: any of various flies of the family bombyliidae that resemble bees feed on nectar and pollen and have larvae that are parasitic on bees wasps and other insects.
蜂虻：蜂虻科中各种外表象蜂的蝇，它们以花粉和花蜜为食，其卵产于并寄生于蜜蜂、黄蜂和其它昆虫。
Bee fly: any of various flies of the family bombyliidae that resemble bees feed on nectar and pollen and have larvae that are parasitic on bees wasps and other insects.
蜂虻：蜂虻科中各种外表象蜂的蝇，它们以花粉和花蜜为食，其卵产于并寄生于蜜蜂，黄蜂和其它昆虫。
Do you know that the bee navigates by polarized light and the fly controls its flight by its back wings?
你知道蜜蜂是借助偏振光飞行，而苍蝇用后翅控制飞行吗？
When a fly sees a bee gathering pollen, he says, "Why do you work so hard?Look! How I live a free and easy life!"
苍蝇看到蜜峰在采集花粉，就说道：“你干吗要那么辛苦呀?你看我生活得多自在！”
When a fly sees a bee gathering pollen, he says, "Why do you work so hard?Look! How I live a free and easy life!"
苍蝇看到蜜峰在采集花粉，就说道：“你干吗要那么辛苦呀?你看我生活得多自在！”
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