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

### Instruction:
 罗比买了3袋巧克力。她把2袋给了她的兄弟姐妹，然后又买了3袋。还剩下多少袋巧克力？


### Response:
 她给了兄弟姐妹2袋巧克力后，还剩下3 - 2 = <<3-2=1>>1袋巧克力。
因此，再买了3袋后，剩下的巧克力袋数是1 + 3 = <<1+3=4>>4。