lack的用法
Lack缺乏，没有Lack+of＋名词：Theplantsdiedforlackofwater.Lack+名词：Welackthestrengthtowalkanyfurther.短语：belacking:欠缺、缺：Moneywaslackingtocompletethebuilding.Belackingin缺乏（某种品质、特点等）,不够：Heisnotlackinginintelligence.Lackfor缺（多用于否定句）Shedoesnotlackforfriends.