讲解:
1. business tycoon 商业大亨
例句:
The high-salaried manager replaced the business tycoon.  
高薪经理取代了企业巨头。  


2. fat cat 很有钱的人
例句:
After graduation he's become very successful and he's turned into a real fat cat.  
毕业后，他很成功，变成一个非常有钱的人。 


3. be filthy with dough  有钱的  
例句:
He is filthy with dough.
他很有钱。 

4. after 追求，搜寻

They were after the money... 

他们想得到这笔钱。

I did eventually find what I was after. 

我最终找到了我想要的东西。

5. filthy adj.肮脏的，污秽的

The water is filthy with fecal matter.

水里面混有肮脏的粪便物。