a cat-and-dog life 争争吵吵的日子
Dog does not eat dog. 同类不相残，同时不操戈
Dumb dogs are dangerous. 不叫的狗咬人
Every dog has his day. 人人都有得意的时候
Every dog is a lion at home. 狗是百步王，只在门前凶。
Give a dog a bad name and hang him. 谗言可畏，欲加之罪，何患无辞
go to the dogs 每况愈下
hang-dog look 愁眉苦脸
If the old dog barks, he give the counsel. 老狗叫，是忠告。
Love me, love my dog. 爱屋及乌
He is a lucky dog. 他是个幸运儿。
lead a dog's life 过穷困潦倒的日子
not have a dog's chance 毫无机会
top dog 当权派;头儿
treat sb. like a dog 不把某人当人看
a hunting dog 猎犬
a lazy dog 懒汉
a gay dog 一个快乐的人
a dirty dog 下流坯
dog-days n.[pl.]三伏天, 大热天; 无所作为的时期, 无精打彩的日子
A good dog deserves a good bone.
[谚]好狗应该啃好骨头, 有功者受赏。
A living dog is better than a dead lion.
[谚]死狮不如活狗。
A staff [stick] is quickly [soon] found to beat a dog with.
[谚]欲加之罪, 何患无辞。
An old dog barks not in vain.
[谚]老狗不乱吠; 老狗 一吠, 就得小心。
An old dog will learn no new tricks. (=You cannot teach old dogs new tricks.)
[谚]老狗学不了新把戏; 老年人很难适应新事物。
as [like] a dog with two tails
非常开心[高兴]
Barking dogs seldom bite.
[谚]爱叫的狗 不咬人; 咬人的狗不露齿。
