1、Keep on going never give up.勇往直前，决不放弃!2、Never put off what you can do today until tomorrow.今日事今日毕!3、Believe in yourself.相信你自己!4、You think you can, you can.你认为你行，你就行。5、I can because i think i can.我行，
1、“爽”即违背、没有履行的意思。与失约、“放鸽子”同意。2、英文：fail to keep an appointment; break an appointment 释义：书面语，一般用于较为正式的场合，指没有履行约会；3、爽约指没有履行约会；失约 。“爽”即违背、没有履行的意思。与失约、“放鸽子”同义。
