鸡属于鸟类,那么它们为何不能高飞呢?参考译文:鸡为什么飞不高?是的,鸡属于鸟类,但并是不是所有鸟都善于飞行。每一种鸟都有些身体部位有助于其自身的生存。一些鸟类有发达的翅膀,它们通过飞行逃脱敌人的追捕。鸵鸟和企鹅根本不会飞,可是鸵鸟有飞毛腿,企鹅则是游泳健将。 Why do chickens fly? The chickens do not fly high? Yes, chickens are birds, but not all birds are good at flying. Each bird has some body parts that contribute to its own survival. Some birds have well-developed wings that fly to escape the enemy’s hunt. Ostriches and penguins do not fly at all, but ostrich has Scud and Penguins are swimmers.