five-year-old children的用法和樣例：
例句
- An infant school is a school for children from about five to seven years of age.
幼兒園是五歲至七歲兒童的學校。 - Reading Recovery is wined at six year olds, who receive four months of individual daily half-hour classes with a specially trained teacher.
恢復讀書在六歲兒童中得到實行，他們接受四個月的個人每日半小時的特訓老師的訓練。
