频率为7次的单词injury outcome insurance impression household claim personality personnel employee reserve approach capacity generally automobile male regardless contact wealthy estimate incident device error relationship recently scale union climate available criticism diet civilian ground liberal establish indicate accomplish finally spot

　　频率为8次的单词range maintain action obvious primarily appeal detail decade pollution advantage culture autobiography leader accordingly plastic approve performance recognize factor enormous avoid shift source fulfill moral rank replace complex

　　频率为9次的单词affect compete global policy account foundation involve lightening technology leak competition behavior community

　　频率为10次以上system activity reward stress expert concern university individual view opportunity hunt challenge process project amount ability rate radiation feature environment create crash advertise tend status reader per local highway brand assume physical instant focus fashion expand effective declare benefit adult

　　频率为20次以上consumer social product likely