adjust prices upward的用法和样例：
- We can adjust prices for you if you leave those materials.
- If you keep these materials, we could adjust price for you.
- Recently,the trend of prices upwards.
- Except outside the Reck SARS and Audi, BMW, Volve, Luhu and Jiebao and so on, also announced the partial vehicle price upward information one after another.