1.表述：dirty dog

释义：A low and sneaky person. （卑鄙的小人）

例句：Your agent seems like a dirty dog, so I wouldn't sign any contract he gives you.

你的代理人是个卑鄙小人，所以他给你的合同我都不会签。

That dirty dog tried to get fresh with me!

那只卑鄙的狗想对我放肆！

Professor Moriarty could be described as the dirty dog of the Sherlock Holmes stories.

莫里亚蒂教授可以被说成是福尔莫斯故事中的行为卑鄙龌龊的人。

2. 表述：lead a dog life

释义：To lead a life that is difficult, unpleasant, or boring. （过着困难，不愉快和无聊的生活了，过着牛马不如的生活，过着悲惨的生活）

例句：My poor dad lived a dog's life to provide for his kids, but we just wrote him off as a boring nobody.

我的穷爸爸过着悲惨的生活来养活他的孩子们，但是我们却认为他是一个无趣的小人物。

I've had to lead a dog's life since college just to make ends meet.

自从大学以来，为了维持生计，我不得不过着潦倒的生活。

I've been working so hard. I'm tired of living a dog's life.

我工作一直很努力。我厌倦了过着穷困潦倒的生活。

3. 表述：be as sick as a dog

释义： To be very ill. （病得很严重）

例句：Honestly, I haven't been avoiding you—I've been sick as a dog.

老实说，我一直在躲着你——我病得很厉害。

I had to go to the doctor on Monday because I was as sick as a dog all weekend.

我星期一得去看医生，因为我整个周末都病得很厉害。