由动词+erwaiter,writer,reader,swimmer…summerruler,eraser…
teacher老师worker工人mother妈妈father爸爸brother哥哥paper纸clever聪明的speaker演讲者computer电脑
带er的单词的发音，一起来学习一下吧
英语单词加上后缀词“er”的读音和意思
worker teacher mother father center
