一些特殊单词的复数形式答:+es:box(es),watch(es),fox(es),match(es),fish(es),bus(es),class(es)dress(es),dish(es),brush(es)+ies:factory(factories),baby(babies),fly(flies),study(studies),penny(pennies),company(companies),party(parties),family(families),country(countries),difficulty(difficulties)+ves:...