What can you hold in your left handbut not in your

What can you hold in your left hand,but not in your right hand?You can hold your right hand in your left hand, but you can not hold your right hand in your right hand.

标签： 五个最难的字谜 、 猜谜语及答案大全 、 脑筋急转弯下载 、 6一10岁的儿童谜语简单 、 又冷又短的冷笑话