origin of dragon dance，关于舞龙的由来，民间传说有好几个版本，这只是其中之一，中英文对照，用词简单。
one day, the dragon king’s was suffering from terrible back pain and it was more than he could endure.
in the dragon palace there was no medicine that could cure the back pain.
the dragon king decided to disguise himself as an old man to seek medical help.
when the doctor felt the pulse of the old man he sensed something really strange and said: "you are not the human!"
the dragon king’s look of dismay could not conceal the truth.
he told the doctor the truth and the reason for his visit.