wo you yige wenti,ruguo ba 5hao lou dandu kaolv, na qita jidong lou kending hui shoudao 5#lou ruanruo diji de yingxiang,na zenme kaolv zhezhong yingxiang ne?
suoyi wo renwei haishi huitian qianghang, zuo diji chuli,shi jianqiebosu dadao 300m/s yishang;