【求定语从句语法解释Ifwewanttoaccomplishanythinginlife,letusnotforget(that)wemustpersevere.Ifwewanttolearnourlessonswellinschool,wemustbediligentandnotgiveupwheneverwecometoanythingdifficult.Weshallfindmany】

　　求定语从句语法解释

　　Ifwewanttoaccomplishanythinginlife,letusnotforget(that)wemustpersevere.Ifwewanttolearnourlessonswellinschool,wemustbediligentandnotgiveupwheneverwecometoanythingdifficult.Weshallfindmanyofourlessonsveryhard,butletusrememerthattheharder(theyare),themoregoodtheywilldousifwepersevereandlearnthemthoroughly.

　　Buttherearesomeamongus(who)arereadytogiveupwhentheycometoahardexampleinmathematics,andsay,”Ican”tdothis.”Those(who)say“Ican”t”willneverdoanythingworthwhile;butthose(who)say“I’lltry”accomplishwonders.Letusremember(that)weshallmeetwithdifficultiesallthroughlife.Ifwekeepontrying,weshallbesuretoconquerandovercomeeverydifficultywemeetwith.Iwehaveahardlessontoday,letusstrivetolearnitwellandthenweshallbepreparedforaharderonetomorrow.Andifwelearntomasterhardlessonsinschool,itwillprepareustoovercomethehardthings(that)weshallmeetinlife,whenourschooldaysareover.

　　求文中的（）定语从句语法解释,第二段需要大概翻译一下,