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The Meaning of the Idiom "Dragonfly Skimming the Water" and the Purpose of a Dragonfly Dipping Its Tail in the Water
Dragonflies are typical hemimetabolous insects: in the stage of transforming from nymph to adult, they do not go through the process of forming a pupa. A dragonfly flies over the water surface, its tail tip close to the water, dipping the water little by little with its tail tip, which is what is commonly called "dragonfly skimming the water." So what does dragonfly skimming the water