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屁眼光。为了解决同学们的麻烦，实现这些奇葩梦想，麻烦社内上演了一幕幕令人啼笑皆非的故事，嬉笑怒骂之间却道出了生活的真谛。……这是杨蓉的长微-博。赵培土忙起身谢过，又喝了口水润嗓子，趁着永平帝开心。玄龟忙答应了，回家准备不提。Some plants are very picky when choosing pollinators. The flowers of European Trollius are like a real safe deposit box, and only six kinds of insects know the code to open the safe deposit box. These lucky people all come from the genus Brevicorn. Only they know how to get into the sepals of European Trollius and find the center of the flower. However, no matter how hard other insects try, they can only fail with disappointment. The short-horned flower fly, which has gone to great pains to pollinate European Trollius, will naturally receive considerable "remuneration". Female short-horned flower flies lay eggs on the carpels of flowers. When the larvae are hatched, they will eat the seeds of flowers and grow up. This symbiotic relationship also has certain risks for European Trollius. The more short-horned flower flies, the greater the chance of pollination, but at the same time, the more insects parasitic on flowers. The cooperative relationship between the two was formed millions of years ago and continues to this day. It is a model of relative balance and harmonious symbiosis in nature.