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蝉?不就是除了唱歌,什么都不会的那个家伙吗?恐怕好多人都会这样说吧。可是,蝉到底是一种怎样的虫子呢?蝉为什么一生都在不停地唱歌?蝉宝宝为什么要在黑暗的地底下独自待五年?成年的蝉为什么只能活过一个夏天?
Cicada? Is not that except singing, what would not that guy? I am afraid many people will say so. However, the cicada in the end is what kind of insects? Cicadas why life are constantly singing? Cicada baby why in the darkness to stay alone for five years? Adult cicadas can only live a summer?