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Flowers not only attract pollinators with color and smell, but also quietly guide insects who are too shy to know what to do because they land on flowers for the first time. There will be a white route on the petals of grassland geranium to guide insects into the center of flowers and find nectar. In this process, the wings of insects will be more or less glued with precious pollen of stamens. The flowers of alpine Pulsatilla and strawberry flowers have white petals on the outside and yellow stamens in the middle. This change in color depth will highlight the stamens and allow insects to fly to the middle of the flowers without hesitation.这院子是极普通的民房。杜宇盘算了一会儿，便答应了。吕馨的声音温和动人，但是语气却是很坚定。《森林的法则》是一档户外真人秀冒险节目，由金秉万带领小伙伴们去到各种地方冒险，完全依靠自己的生存能力，显现出不同强度的生存挑战！Not the first SYN message-> Check whether the message is retransmitted: if it is retransmitted, it will be forwarded and added to the white list; If it is not, it will be discarded and added to the blacklist.