### Chinese: 还有你想那么多的厂家每年的广告费都要几千万甚至是几个亿，这个费用何来？
### English: Also, <v>you think that</v> so many manufacturers spend tens of millions or even hundreds of millions in advertising fees each year. Where does this cost come from?

### Improved English: Just think about where the tens of millions or even hundreds of millions yuan advertising fee of the manufacturers come from every year.
