毛笔用动物的毛发制成，笔尖很细。
The brushes have bristles of animal hair, with a very fine point.
有些动物的毛发比较浓密，这些浓密的毛发就如同厚厚的毛毯，帮助它们抵御寒冷。
Some animals have more hair than others, so they have a better blanket for weather.
有些动物的毛发比较浓密，这些浓密的毛发就如同厚厚的毛毯，帮助它们抵御寒冷。
Some animals have more hair than others, so they have a better blanket for cold weather.
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