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

### Instruction:
 Hazel和Razel是一对分享他们所得到的一切的双胞胎。如果Hazel收到了6件衬衫，而Razel收到的衬衫数量是Hazel的两倍。他们总共有多少件衬衫？


### Response:
 Razel收到了6 x 2 = <<6*2=12>>12件衬衫。
因此，他们总共有12 + 6 = <<12+6=18>>18件衬衫。