2.The function of a mammal's fur is to insulate the body.
哺乳动物皮毛的功能在于使温。
3.The whale is the largest mammal in creation.
鲸鱼是所有哺乳动物中最大的。
4.Whales are mammals that live in the sea.
鲸是生活在海洋中的哺乳动物。
5.The boa feeds on birds and small mammals.
蟒主要吃鸟和小的哺乳动物。
6.There is a close analogy between the gills of a fish and the lungs of a mammal.
鱼的鳃哺乳动物的肺很相似。
7.Bats are the only mammals to have wings and to achieve sustained flight.
蝙蝠是唯一的有翅膀能持续飞行的哺乳动物。
8.Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.
森林对鸟类来说是重要的栖息，在温带森林里，小型的哺乳动物居住在稠密的森林下层。
9.Look at the attitude of the mammifer toward the serpent: the serpent provokes fear and repulsion.
看看哺乳动物对蛇的态度：蛇挑起他们的恐惧和排斥。
10.ResultsBased on the classification of appraising criterion on acute toxicity test via mouth,skin and inbreathe with Wistar rat,LDS belonged to a feeb...
温。
能持续飞行
，
