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

### Instruction:
 特蕾西每顿喂她的两只狗1.5杯食物。她每天喂狗三次。如果1磅等于2.25杯，她的两只狗消耗多少磅的食物？


### Response:
 每只狗每天消耗1.5 x 3 = <<1.5*3=4.5>>4.5杯食物。
以磅为单位，这相当于4.5/2.25 = 2磅。
所以两只狗一共消耗2 x 2 = <<2*2=4>>4磅食物。