【英语复合名词变复数,amanteacherawomandriveraboystudentapasser-byagrown-upalooker-onafilm-goerasister-in-law】

　　英语复合名词变复数,

　　amanteacher

　　awomandriver

　　aboystudent

　　apasser-by

　　agrown-up

　　alooker-on

　　afilm-goer

　　asister-in-law