名词哺乳动物
名词
1. Whales are mammals; fish are not.
鲸是哺乳动物；鱼则不是。
1. 哺乳动物
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.
1. 哺乳动物
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.
