加es:potatoes,tomatoes
ies:family-families;
用于复数-deer.people
特殊-woman-women;foot-feet;tooth-teeth
英语单数变复数举例 加es的单词变y为i加es的单词只用于复数的单词特殊形式（如：man ）每种单词要多一点
加es:potatoes,tomatoes
ies:family-families;
用于复数-deer.people
特殊-woman-women;foot-feet;tooth-teeth