1、cover的常用短语是:用作动词(v.)cover against (v.+prep.)保险 insurecover sb/sth against sthInsurance companies try to persuade young married men to cover themselves against illness or death.保险公司努力说服结了婚的年轻男子为自己生病或死亡投保。These goods are covered against fire.这些货物已保火险。2、cover形容词:coverable;名词:coverer;过去式:covered;过去分词:covered;现在分词:covering;第三人称单数:covers。3、cover【近义词】cloak。