play it fair

play it fair Play hard,play fair play fair,hit fair,fight fair 公平竞争 FAIR PLAY怎么样 翻译turnabout is fair play My game is fair play it's not fair it‘s not fair it's not.fair It'S Not Fair 歌词 fair fair fair fair play it play fair的意思是什么要用英文 It isn't fair的汉语 it isn't fair和it's not fair的区别哪个对?哪个比较常用?