另一项研究也表明那些出生在早已养着狗或者猫的家庭的孩子更不容易患哮喘。

There have been other studies which suggest that children born into a household that already has a dog or a cat are less likely to develop asthma.

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对猫类过敏是哮喘病发作最常见的诱因之一。

Allergy to cats is one of the commonest causes of asthma.

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对猫类过敏是哮喘病发作最常见的诱因之一。

Allergy to cats is one of the commonest causes of asthma.

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