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

### Instruction:
 达西洗了20件衬衫和8条短裤。如果他折叠了12件衬衫和5条短裤，他还剩下多少件衣物需要折叠？


### Response:
 达西还需要折叠20 - 12 = <<20-12=8>>8件衬衫
达西还需要折叠8 - 5 = <<8-5=3>>3条短裤
达西还需要折叠总共8 + 3 = <<8+3=11>>11件衣物