[C]哺乳動物 any of the group of vertebrate animals that includes man and all others which nourish their young with milk
英英釋義
Noun:
any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
mammal的用法和樣例：
例句
用作名詞 (n.)
The bat is the only mammal that can fly. 蝙蝠是唯一會飛的哺乳動物。
Is a meadow more complex than a mammal brain? 草地較之哺乳動物的大腦更複雜嗎？
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