编辑同志:假期里,上初一的儿子去少年宫参加小提琴培训放学时,为了上网,将价值6000余元的小提琴以300元卖给小雨。我们发现后,即找小雨及其家长,要求退还小提琴。但小雨称我儿子因为上网早在此之前已经借了50元,这次买小提琴又给了300元,买卖公平。其家长也称一手交钱一手交货, Edit comrades: During the holidays, the first day of the first son went to the Children’s Palace to attend violin training school, in order to access the Internet, the violin worth 6,000 yuan sold for 300 yuan light rain. After we found it, we found drizzle and parents asking for the return of the violin. But the rain said my son had borrowed 50 yuan before the Internet because this time, this time gave the violin bought 300 yuan, the sale of equity. The parents also said that one hand to pay the delivery,