There are four categories to enter: Dogs at Work, Dogs at Play, Dog Portrait and Man's Best Friend.
比赛分为四个类别：工作的狗，玩耍的狗，狗狗写真，人类好友。
Food sniffer dogs work at international airports in the United States.
食物嗅探犬在美国的国际机场工作。
Researchers % from Virginia Commonwealth University studied 75 people at a manufacturing company where each day for a trial week 20 to 30 people were allowed to bring their dogs to work.
来自弗吉尼亚州联邦绽大学的研究人员对一家生产公司的75名员工进行了研究。在这一工厂里，每天有20到30的人员得到允许可以带他们的狗狗来工作。
So I was wondering-is it interacting with actual pets that's beneficial, or would just looking at pictures of cats and dogs work to curb stress?
所以我一直想知道，有益的是与真实的宠物互动吗？或是只是看看猫猫狗狗的图片就可以减少压力呢？
Particularly in the early days, working ability was the main selection criterion, while no attention was put on health, apart from the dogs having to be able to handle the work at the farm.
尤其在早期，工作能力是选择牧羊犬的主要标准，只要可以容或应对农场的工作，许多人并不在乎牧羊犬是不是健康。
Particularly in the early days, working ability was the main selection criterion, while no attention was put on health, apart from the dogs having to be able to handle the work at the farm.
尤其在早期，工作能力是选择牧羊犬的主要标准，只要可以容或应对农场的工作，许多人并不在乎牧羊犬是不是健康。
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