它起源于一个拉丁谚语:“Children are children and do childish things.”调皮是男孩子的天性，所以他们经常会做一些孩子气的事，当然，在某种程度上也是意料之中的。
不少于80个单词。Lily is a high school student. She wants to be a professional actress. As a volunteer ， she often volunteers her time。
