2.a gay dog 一個快樂的人
3.A good dog deserves a good bone. 好狗應該啃好骨頭, 有功者受賞。
4.a hunting dog 獵犬
5.a junkyard dog 討厭的人
6.a lazy dog 懶漢
7.A living dog is better than a dead lion.死獅不如活狗。
8.A staff [stick] is quickly [soon] found to beat a dog with.欲加之罪, 何患無辭。
9.An old dog barks not in vain.老狗不亂吠; 老狗 一吠, 就得小心。
10.An old dog will learn no new tricks. (=You cannot teach old dogs new tricks.)老狗學不了新把戲; 老年人很難適應新事物。
11.as [like] a dog with two tails非常開心[高興]
12.attack dog 軍犬
13.Barking dogs seldom bite.愛叫的狗不咬人; 咬人的狗不露齒。
14.be (old) dog at (a thing) 對...有經驗; 對...很內行
15.be in the doghouse 倒了霉。