1.
A pet in the family keeps people in touch with the more natural, animal world.
家有宠物使人们接触到更加自然的动物世界，
2.
Bilateral symmetry, for example, is almost universal among animals.
举例来说左右对称就几乎普遍地存在动物世界。
3.
World Federation for the Protection of Animals
世界动物保护联合会
4.
The whale is the largest animal in the world.
鲸是世界上最大的动物。
5.
World Association of Wildlife Veterinarians
世界野生动物兽医协会
6.
World Small Animal Veterinary Association
世界小动物兽医协会
7.
Hot Animals Around the World: The Koala
世界热门动物：无尾熊
8.
World Zoo Conservation Strategy
世界动物园保护战略
9.
World Society for the Protection of Animals
世界动物保护学会(动物保护学会)
10.
Around the world, plants, animals, fungi,
世界各地的植物、动物、菌类，
11.
Publications and World Disarmament Campaign Branch
出版物和世界裁军运动处
12.
In the world the elephant is the only animal with a trunk.
大象是世界上惟一长有长鼻子的动物。
13.
It's also the biggest eater in the world.
它也是世界上吃得最多的动物，
14.
The world's fastest animal is the cheetah.
世界上跑得最快的动物是印度豹。
15.
He is an expert in zoology and his fame is worldwide.
他是动物学方面的专家，世界闻名。
16.
The golden monkey is a kind of rare animal in the world.
金丝猴是世界上的稀有动物。
17.
They help to preserve many of the world's wild animals.
他们帮助保护许多世界野生动物。
18.
World Association for Transport Animal Welfare and Studies
世界研究动物运输安全协会