Tom’s been leading a dog's life since he got divorced.湯姆自離婚後壹直過著混沌潦倒的日子。
2、dog eat dog 殘酷、競爭激烈
Some people say we live in a dog-eat-dog world.有人說，我們生活在壹個競爭激烈的世界。
3、work like a dog 指壹個人努力、賣命地工作
They say that to be successful, a person has to work like a dog.他們說，壹個人想要成功就得拼命工作。
4、dog-tired 筋疲力盡
Such hard work can make him dog-tired.如此堅辛的工作使他疲憊不堪。
5、sick as a dog 病得嚴重
The situation would be even worse if she became sick as a dog.如果她病得厲害，情況會更糟。
6、Every dog has its days.每個人都有屬於自己的運氣/每個人都有時來運轉的壹天
Don't give up and try your best I believe every dog has its day.不要放棄，繼續努力，我相信每個人都會有成功的時候。
7、You can never teach an old dog new tricks. 老古董學不會新東西
You're never going to teach your father at the age of 79 to use a computer. You can't teach an old dog new tricks, you know.不要指望教妳79歲的老父親學會電腦。年長的人學不會新事物。
8、meaner than a junkyard dog 冷漠，不友好
He is a man meaner than a junkyard dog.他是壹個殘酷、冷漠的男人。
9、His bark is worse than his bite. 刀子嘴、豆腐心
I wouldn't be scared of her if I were you. Her bark's a lot worse than her bite.如果我是妳，我不會怕她。她是個刀子嘴，豆腐心的人。
10、let sleeping dogs lie 不要自找麻煩、自討苦吃
Green is trying to let sleeping dogs lie.格林在努力避免招惹是非。
11、the dog days of summer 壹年中最熱的三伏天
I can do nothing except for swimming in the dog days of summer.在三伏天裏，除了遊泳，我什麽事也做不成。
12、to rain cats and dogs 下傾盆大雨
In the middle of the picnic it started to rain cats and dogs, and everybody got soaked.野餐進行到壹半時，天開始下起大暴雨，弄得每個人都濕透了。?