好像表示的是For millions of years为什么最后要加before呢?
母语人士的回答
Rebecca
这是个好问题!这before是一个必不可少的单词,表示句子的意图。换句话说,这里用来强调时间感并指代millions of years尽管该句子是过去式,但是由于单词continuation before或prior这样的量度的单词prior示例: He is a shoemaker, like the generations of his family before. (他是一个制鞋匠,就像他的家人一样。)例子: She became a lawyer, like her parents before her. (她像她的父母一样成为律师。)