Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 唐纳德每天喝的果汁瓶数是保罗每天喝的果汁瓶数的两倍加3。如果保罗每天喝3瓶果汁，那么唐纳德每天喝多少瓶果汁？


### Response:
 保罗每天喝的果汁瓶数的两倍是2*3 = <<2*3=6>>6瓶。
所以，唐纳德每天喝的果汁瓶数是6+3 = <<6+3=9>>9瓶。