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

### Instruction:
 莎拉计划做一些烘焙。她买了5磅黑麦面粉，10磅全麦面包粉和3磅鹰嘴豆面粉。莎拉家里已经有2磅全麦糕点面粉。她现在有多少磅面粉？


### Response:
 莎拉有5+10+3+2 = <<5+10+3+2=20>>20磅面粉。