狗是人類的親密朋友，在人們的生活、工作中扮演著不可或缺的重要角色。在美國，人們喜歡狗，美國人因此也喜歡使用很多和狗相關(guān)的短語表達。

　　1、to lead a dog's life 形容人過著貧困潦倒、慘不忍睹的生活

　　tom's been leading a dog's life since he got divorced.

　　湯姆自離婚后一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，我們生活在一個競爭激烈的世界。

　　3、work like a dog 指一個人努力、賣命地工作

　　they say that to be successful, a person has to work like a dog.

　　他們說，一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.每個人都有屬于自己的運氣/每個人都有時來運轉(zhuǎn)的一天

　　don't give up and try your best i believe every dog has its day.

　　不要放棄，繼續(xù)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(xué)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.

　　不要指望教你79歲的老父親學(xué)會電腦。年長的人學(xué)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.

　　他是一個殘酷、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.

　　如果我是你，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 一年中最熱的三伏天

　　i can do nothing except for swimming in the dog days of summer.

　　在三伏天里，除了游泳，我什么事也做不成。

　　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.

　　野餐進行到一半時，天開始下起大暴雨，弄得每個人都濕透了。。