- 問題詳情:Regretcanbeaterribleewhosufferfromitsooftenbecomebitterandfullofisanemotionthatseriousentrepreneurs(企業家)cannotafford,theymustkeepmovingaheadandshouldnotlookAlexanderGrahamBell,inventorofthetelephonesaid:whenonedoorcloses,anotheropens,butweof...
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