37.dog's dinner n. 大杂烩，一团糟，混乱的局面
38.dog-tired adj. 极度疲乏，累极了
39.Every dog has his day.凡人皆有得意日。
40.Every dog has its day. 人人都有得意日。这句习语常用来在别人失意的时候劝慰别人，意思是每个人总会有碰到好运气或者成功的时候。
41.Every dog is a lion at home. [Every dog is valiant at his own door.]狗是百步王, 只在门前凶。
42.Fight dog, fight bear.打个青红皂白, 一决雌雄。
43.Give a dog a bad [an ill] name(and hang him).一旦给人加一个坏名声, 他就永远洗刷不掉; 人言可畏。
44.guide dog 导盲狗,盲人引路犬
45.gun dog n. (随猎人狩猎的)猎狗
46.hair of the dog n. 解醉酒，醒酒液
47.He is a lucky dog. 他是个幸运儿。
48.It is ill to waken sleeping dogs. [let sleeping dogs lie; don't wake a sleeping dog.]别多事, 别惹麻烦。
49.lead a dog's life 过穷困潦倒的日子
50.lead a dog's life过着牛马不如的生活
51.Let sleeping dogs lie. 不要招惹麻烦。
52.little dog n.[天]小犬座 (=Canis Minor)
53.love me, love my dog.你若把我当朋友, 也要把我的朋友当朋友; 爱屋及乌。
54.not have a dog's chance 毫无机会
55.one's bark is worse than one's bite 一个人尽管骂人刻薄，出言厉害，但不会真正去伤害别人。
56.police dog n. 警犬
57.prairie dog (北美产)草原犬鼠
58.raccoon dog n. [动] 狸
59.Scornful[Hungry] dogs will eat dirty puddings.人到危急时, 平时所不屑做的也要做; 急不暇择, 饥不择食。
60.sea dog n.老练的水手,海豹
61.sheep dog n. 护羊狗
62.shepherd dog n.牧羊犬
63.sick as a dog 描述病得很严重的样子。
64.teach an old dog new tricks使守旧的人接受新事物
65.teach the dog to bark教狗怎么叫(意指多此一举)
66.The dog returns to his vomit.狗回头吃自己吐出来的东西; 重犯旧日罪恶
67.top dog 当权派;头儿
68.toy dog n. 小型狗, 玩具狗
69.treat sb. like a dog 不把某人当人看
70.water dog n.会水的狗,水性好的人,[动]水獭,(下雨前的)小云层
71.work like a dog 像狗一样工作，引申为：拼命地工作。
72.working dog 牧羊犬
73.You can never teach an old dog new tricks. 老年人旧习难改。
