fall short of the expectations of one's teacher
辜負(fù)老師的期望

-I think the principal's speech encouraged me deeply and doubled my confidence. The bitterness and tiredness of the past are now transformed into aspiration for the future.
-我覺得校長(zhǎng)的演講深深激勵(lì)了我，讓我信心倍增。過去的那些痛苦艱辛如今都轉(zhuǎn)化成了對(duì)于明天的向往。

-I have the same feeling. I thought that I would do my best to study well in the future thus not to fall short of the expectations of my teachers and my parents.
-我也有同樣的感受。我想我以后要努力學(xué)習(xí)，那樣才不辜負(fù)老師和父母的期望。

*live up to / come up to / meet one's expectations 不辜負(fù)某人的期望

來源:可可英語 http://www.ccdyzl.cn/kouyu/201009/113787.shtml