... medicines against many diseases抗很多疾病的药物 work on animals在动物身上做实验 fight ______animal rights为争取动物的权利而斗争 ...
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He used the word fauna in the title of his work on animals and that's why English speakers began using it.
他在自己关于动物的著作里使用了fauna作为标题,从此后说英语的人便开始使用它了。
If pharmaceuticals only work for half the population why do we still need to test them on animals?
既然药物只在半数人身上有效,我们为什么还一直要在动物身上做药物测试?
"Most of the work has been done on birds and other terrestrial animals, " he says, adding that a lot of that work has been artificial experiments, not studies of creatures out in the wild.
他补充说很多工作都是人工实验,并不是研究野外的动物。
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