### 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: There are so many manufacturers you want to spend tens of millions or even hundreds of millions of dollars a year on advertising, <v>the cost of where</v>?
### Errors: There is a minor fluency/grammar error at "the cost of where" within <v></v>.

### 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.
