重写句子：Alanpassedthetest.Alanhadstudiedhard.Alanhadunderstoodthematerial.(complexsentence)
TheMississippi,whichissometimescalled________,hasplayedavitalroleinthehistoryoftheUnitedStates.
AtanyrateIdidnotsucceed_______myselfunderstoodbyyou.
英语翻译：undermanned
句子写作：Thejudgehadahardtimedeciding___________________.
