Con song

Cuoc doi nhu nhung con song.Co luc rat du doi, co luc rat nhe nhang.Tung con song cu lan tang,luc len luc xuong, co luc tuong chung nhu rat kho khan, nhung cung co luc don gian.Nhung du kho khan den chung nao di nua thi chung ta cung se vuot qua nhu cach chung ta doi dau voi no