并非只有人类才面临体重直线上升的问题 -- 肥胖目前也正成为狗类健康的头号威胁.It's not just humans who are getting fatter - obesity is now the No 1 health problem for Dogs.法官: 狗类专家说狗咬鞋子是因为狗渴望训练.Judge: Dog experts say that when dogs chew shoes, it's...