hen 母鸡是可数名词，如：
The hens are not laying well.
母鸡现在不爱下蛋。
hen
n.母鸡;雌禽
复数： hens
The hens don't lay during this cold weather.
这样冷的天气母鸡不会下蛋。
My hens are laying well.
我养的鸡产蛋很多。
You get eggs from hens.
蛋是母鸡下的。
Are your hens laying well?
你的母鸡下蛋多吗？
It is time for hens to brood.
该是母鸡孵蛋的时候了。
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