来自胡泉的问题
将foot,sheep,goose,tooth,photo,tomato,potato,butterfly,boy,hores,people,mouse改为复数形式
将foot,sheep,goose,tooth,photo,tomato,potato,butterfly,boy,hores,people,mouse改为复数形式


将foot,sheep,goose,tooth,photo,tomato,potato,butterfly,boy,hores,people,mouse改为复数形式
将foot,sheep,goose,tooth,photo,tomato,potato,butterfly,boy,hores,people,mouse改为复数形式
foot--feet,sheep--sheep,goose-geese,tooth-teeth,photo-photos,tomato-tomatoes,potato-potatoes,butterfly-butterfpies,boy-boys,horse-hores,people-people,mouse-mousees以O结尾的单词变复数时,有生命的加es,无...
bus呢?