Many of these pets spend their days playing, learning to follow or even going to classes.
很多宠物每天都在玩耍和学习如何追随主人，甚至还会去上课。
It is suitable for these pets who are beset by parasites and fungi especially.
特别适合受寄生虫和真菌困扰宠物使用。
But these pets carry plenty of germs and allergens, prompting researchers to ask: Are cats and dogs really safe for children?
但是这些宠物身上携带大量的细菌和过敏原，促使研究员们提出这样一个问题：猫狗等小动物真的不会引起孩子的过敏吗？
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