HINTS:

十以上数字、年份、百分率、金额等都用阿拉伯数字表示，数字采用千位逗号隔断

Zheng

Wind Musical Instrument

It was from the Tang Dynasty on (618-907 AD), that Fengzheng gradually became a toy for entertainment. But at that time, this entertainment was limited to the children of no ability and the rich. Getting bored with the silent Fengzheng, they tied a bamboo whistle on it. When they flew Fengzheng in the air, the wind blew the whistle and made a sound much like that produced by Zheng, an ancient musical instrument, which was very pleasant to the ear. People then vividly named it Fengzheng, Wind Musical Instrument. Only after the Northern Song Dynasty (960-1127 AD), was the paper Fengzheng increasingly made. And from then on, it turned from the entertainment for the rich into a popular one among the ordinary people.
风筝是在唐朝（公元618-907年）开始逐渐成为娱乐工具的。但那时，这种娱乐仅限于不能自理或者有钱人家的孩子。 如果觉得闷闷的风筝无聊，他们还会在竹骨上绑一个哨子。 这样当风筝放飞时，风吹响哨子，发出类似筝（一种古代悦耳的乐器）的声音。随后人们才正式称它为风筝，风中的乐器，。 直到北宋时期（公元960-1127年），人们才大量制作风筝。 也就是从那时候起，风筝才从富贵人家的专宠变为大众娱乐的玩具。