Before, they used to keep animals in it.
以前,人们在这饲养动物。
It means we try to keep animals from danger.
意味着我们尽力使动物免受危险。
We should think about — to keep animals and plants from becoming endangered.
我们应该想想我们能做些什么来阻止动植物濒于灭绝。
All possible means have been tried to keep animals and plants from becoming endangered.
为了使动植物的生命不受到威胁,所有的方法都试过了。
He told me that this drought has taught him a hard lesson: it is too difficult to keep animals.
他告诉我干旱给了他一个沉痛的教训:饲养动物太困难了。
It is cruel to keep animals in confined spaces.
把动物关在狭小的空间里是残酷的。
It is cruel to keep animals in confined spaces.
把动物关在狭小的空间里是残酷的。
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