英语单词单数变复数

plane = planes
dictionary= dictionaries
cinema = cinemas
radio= radio
photo=photos
watch =watches
brush=brushes
month
mouth=mouths
box=boxes
leaf= leaves
wife=wives
factory= factories
baby= babies
library= libraries
life = lives
knife= knives
zero = zeros
zero
potato= potatoes
tooth= teeth
woman = women
child children
sheep= sheep

planes dictionaries cinemas radios photos
watches brushes months mouths lives knives zeros
zeros potatoes teeth women children sheeps

planes dictionaries cinemas radios photos
watches brushes months mouths boxes leaves wives
factories babies libraries lives knives zeros
zeros potatoes teeth women children sheep
(字母-e结尾的单词变复数：
一般情况下直接加-s；（如plane等）
以-fe结尾的：一般都是变-fe为-ves；（如wife knife等 ）
2.若以字母-y结尾的单词变复数：
一般情况下变-y为-ies；
（如dictionary factory baby library 等以辅音