新鲜的空气和锻炼是形成积极心态最有力的武器。拥有一只狗能同时保证你得到这两种。
Fresh air and exercise are two of the most powerful things for creating a positive mental attitude. Owning a dog ensures you get plenty of both.
“所有这些疾病的证据是非常，非常有力的，”Rook说，“这很容易证明，如果你住在农场或养狗，你就不太可能有这些疾病的，如果你是一个大家庭中最小的孩子，你也不太可能有这些疾病。”
It's very easy to show if you live on a farm or keep a dog, you're less likely to have these disorders. If you are the youngest child in a big family, you're less likely to have these disorders.
苛刻的训练。非常苛刻的，有力的技术培训，可导致狗怨恨他的训练和教练。
Harsh training. Very harsh, forceful training techniques can cause a dog to resent his training and trainer.
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