你隨時都知道自家的狗狗開不開心，對吧：興奮地搖著尾巴，頑皮的吠叫說明了一切？但要說出狗狗為什麼會悲傷甚至沮喪就不容易啦

Learn more about your ad choices. Visit megaphone.fm/adchoices