一、名词复数规则 1．一般情况下,直接加-s,如：book-books,bag-bags,cat-cats,bed-beds 2．以s.x.sh.ch结尾,加-es,如：bus-buses,box-boxes,brush-brushes,watch-watches 3．以“辅音字母+y”结尾,变y为i,再加-es,如...