小鸡与母鸡都是鸡，可是因其大小雄雌，在功能上还是有其差异的。
Both chick and hen are chooks, but their function is different due to size and gender.
小鸡与母鸡都是鸡，可是因其大小雄雌，在功能上还是有其差异的。
Both chick and hen are chook, but their function is different due to the size and the gender.
小鸡与母鸡都是鸡，可是因其大小雄雌，在功能上还是有其差异的。
Both chick and hen are chook, but their function is different due to the size and the gender.
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