Mammals are animals such as humans, dogs, lions, and whales. In general, female mammals give birth to babies rather than laying eggs, and feed their young with milk.
英汉词典释义
n.
哺乳动物
Whales are mammals that live in the sea.鲸是生活在海洋中的哺乳动物。
英英词典释义
Noun
1. 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