写英语句子可以用数字开头么

题目

写英语句子可以用数字开头么
16-year-olds .......

答案

数字开头可以 情况太多了
15 lives were lost in the battle.
那个 16-year-old 是一个形容词 还有记住 有连字符时 old year 只能用单数
16-year-old child