求翻译：Except, oddly, when it came to their own peer’s behavior. On the final day of class, the community educator asked them to guess how many kids their age had already had sex. The kids called out numbers. 55 percent. 68 percent. 99.9 percent. They all laughed at that last one. All but one of the kids thought more than half of 13-year-olds in this county had already had sex.是什么意思？

待解决 悬赏分：1 - 离问题结束还有