雅思写作常用词汇：动物　　下面雅思为大家整理了雅思写作常用词汇：动物，供考生们参考，以下是详细内容。
　　animal rights; 　　animal welfare; 　　animal abuse 　　- eg: Animal rights advocates all over the world believe strict regulations are required to reduce animal abuse.
; 　　animal experimentation/animal testing; 　　humane。
　　ethical 　　-eg: in ethical manner，The benefits to humans dont justify the harm to animal on an ethical basis.
; 　　on moral grounds 　　-eg: Some animal rights activists argue that the animal testing is unjustifiable on moral grounds。