1.表述：work like a dog

释义：To work very hard. （拼命工作）

例句：I've been out here working like a dog while you sit inside sipping lemonade. Can you maybe lend a hand?

我一直在外面拼命干活，而你却坐在里面喝柠檬水。你能帮我一下吗?

I worked like a dog all summer to earn enough cash to buy my guitar, and it was all worth it.

我辛辛苦苦地干了一个夏天，赚了足够的钱来买我的吉他，这一切都是值得的。

He must work like a dog in order to support his large family.

他必须拼命工作以养活他的大家庭。

Their boss pays the highest wages, but he wants his pound of flesh in return and makes them work like a dog.

他们的老板付给他们最高的工资，但对他们非常苛求，要他们拼命干活。

2. 表述：let sleeping dog lies

释义：To leave a situation alone so as to avoid worsening it.（莫惹是生非，别惹麻烦）

例句：Jill: Should I ask the boss if he's upset at my coming in late in the mornings?

我应该问老板我早上迟到了他是否不高兴吗?

Jane: If he hasn't said anything about it, just let sleeping dogs lie.

如果他什么也没说，就别自找麻烦了。

I thought I would ask Jill if she wanted me to pay her back right away, but then I decided to let sleeping dogs lie.

我本想问吉尔要不要我马上还她钱，但后来我决定不要惹麻烦了。

Oh, don't mention that fight they had months ago—let sleeping dogs lie!

噢，别提他们几个月前的那场争斗了——莫惹是非!