短语词组短语He was nine years old 他九岁;他九岁了Eighty -nine years old 八十九岁I am nine years old 我九岁了;我今年九岁了john is nine years old 约翰是九岁Twenty -nine years old 二十九岁I was nine years old 我九岁了;我九岁 返回 nine years old