Definition: nothing special, part of the routine

　　这句话的意思是“没什么特别的，司空见惯”

　　例句：

　　Don't worry about it. It's all in a day's work.

　　别担心，这没什么特别的，

　　Cooking is all in a day's work.

　　烧饭是常有的事儿。

　　All work and no play makes Jack a dull boy.

　　Definition: Idiom meaning that you need to have fun in order to be a happy, healthy person

　　这句话就是传说中的“只工作不玩耍，聪明的孩子也变傻”。

　　例句：

　　Go home! Remember: All work and no play makes Jack a dull boy.

　　快回家吧，要记住：只工作不玩耍，聪明的孩子也变傻。

　　I'm worried about him. He hasn't yet understood that all work and no play makes jack a dull

　　boy.

　　我很担心他，他还没有明白过来，只工作不玩耍，聪明的孩子也变傻。

　　dirty work

　　Definition: Necessary, but uninteresting, or difficult work

　　这句话的意思是“必须要做的但很无聊或很难的工作”，其实也就是做苦工，或者是吃力不讨好的工作。

　　例句：

　　He did the dirty work on that project.

　　他在那个项目中做的是吃力不讨好的活儿。

　　Have you got around to doing the dirty work yet?