Another problem is the lack of good animal models.
另一个难题是缺少良好的动物模型。
There is, for one, the problem of animal awareness.
这儿有个例子是有关动物意识问题的。
The same problem can occur when an animal is caught in fishing net.
同样的问题在动物被鱼网抓住时也能发生。
The same problem can occur when an animal is caught in fishing net.
同样的问题在动物被鱼网抓住时也能发生。
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