- 问题详情:Haveyoueverbeensadbecauseoffailure?Pleaseremember,foroften,achievingwhatyousetouttodoisnotthemostimportantthing.Aboydecidedtodigadeepholebehindhishouse.Ashewasworking,acoupleofolderboysstoppedbytowatch.“Whataredoing?”askedoneofthevisitors....
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