relate做不及物动词时,后跟to
存在结构就是sth.relatetosth./sb.
relating是分词形式,可以作后置定语.说明sth和主语主动关系
thequestionrelatingtoouraffairsisunderdiscussion.
=thequestionwhichisrelatingto.
related是形容词主要结构就是sth.berelatedto
thequestionsarerelatedtoouraffairs.
thequestionrelatedtoouraffairsisunderdiscussion(可作后置定语)=thequestionwhichisrelatedto...(从句)