You are a lucky dog.

　　你真是个幸运儿.

　　My boss is a jolly dog.

　　我的老板是个风趣的家伙.

　　Every dog has his day.

　　凡人都有得意时.

　　David works like a dog .

　　大卫工作真卖劲儿.

　　The film must be a real dog.

　　这部电影一定很糟糕.

　　Your partner is a dirty dog.

　　你的合伙人是个卑鄙小人.

　　The poet died like a dog .

　　这位诗人潦倒而死.

　　They treated him like a dog.

　　他们把他看得猪狗不如.

　　You can't teach an old dog new tricks.

　　你很难改变老人的想法.

　　He is really a dead dog.

　　他真是个没用的东西.