1.Offense is the best defense. 进攻就是最好的防守。 2.Not to advance is to go back. 不进则退。 3.One boy is a boy,two boys half a boy,three boys no boys.一个和尚挑水喝,两个和尚抬水喝,三个和尚没水喝。 4.One false move may lose the game. 一着不慎,满盘皆输。 5.One man's fault is the other man's lesson. 前车之鉴。(字面意思:一个人的错误就是另外一个人的学习/教训)