egghead 其实是用来指 a person, especially a man,

who is very clever and interested only in studying and other mental activities.

那种非常聪明，只对学习和动脑子感兴趣的学究，

书呆子，尤其指男性。

举个例子

It is not as if it were a cranky scheme thought up by a lot ,

of ultra-modern doctrinaire eggheads.

这并不像是一群超现代教条主义的书呆子想出的古怪方案。

●egg in your beer   

有人试过鸡蛋+啤酒这种喝法吗？

小编没试过，也没胆子试，

不过 egg in your beer 的意思小编还是知道的，

它指“不劳而获的奖励或帮助”。

最常见的用法是 "What do you want, egg in your beer?"，

用来反驳那些对本应该感到满意的事情不停抱怨、想“得寸进尺”的人。

举个例子

Your parents paid for your college degree and now you're moaning ，

that they won't pay for your rent?

What do you want, egg in your beer?

你的父母为你付了大学学费，

现在你却抱怨他们不愿为你付房租?

你想怎么样，得寸进尺吗?

还有一个经常应用的表达也可以表示得寸进尺、冒越来越大的风险 ，

那就是 push one's luck。

举个例子

She's agreed to help on Saturday,

but I think I'd be pushing my luck，

if I asked her to be here the whole weekend.

她同意周六来帮忙，

不过我想我要是让她整个周末都来的话就是得寸进尺了。

● egg sb on   

，egg也可以做动词使用。

egg sb on 意思为“怂恿，鼓动，煽动”，

strongly encourage someone to do something ，

that might not be a very good idea.

强烈鼓励别人去做一些可能不是很好的事情。

举个例子

Don't egg him on! He gets himse,

lf into enough trouble without your encouragement.

别再给他煽风点火了，你不怂恿他，他都一身麻烦了。

● “walk on eggs/” 怎么理解？

If you are walking on eggs/eggshells,

you are being very careful not to offend someone or do anything wrong.

如果你“walk on eggs/eggshells”，

意思是你非常小心的不冒犯别人或做错事。

walk on eggs/eggshells 指的就是“小心翼翼地做事；小心谨慎”。

（walk on eggshells会更常用些。）

举个例子

When my mother is staying at our house, I feel like I'm walking on eggshells.

当我妈妈住在我们家的时候，我凡事都要小心翼翼。

●    have egg on your face     

我们之前学过“丢脸”是 lose face，

同样的 have egg on your face 的意思也是“（某人）丢脸，（某人）出丑”。

举个例子

This latest scandal has left the government with egg on its face.

最近的这次丑闻让政府丢尽了脸面。