star有四种意思：

1、用作形容词（adj）：用星装饰的；戴着星章的；标有星号的；…主演的

例句：The director stayed in a cinema college for a few days in order to hunt some actors who are qualified to star in his new movie.

这位导演为了寻找能担任一部大片主演的演员，在电影学院呆了好几天。

2、用作名词（n）：恒星；星状物；星形饰物；星号

例句：But it's a hard process to do because, as you know, the middle of a star is quite hot, almost by definition.

但这是一个艰难的过程。因为，如你所知，恒星中心相当炽热。

3、用作动词（v）：主演；担任主角；使主演；由…担任主角

例句：The director wanted to star her in the new film.

导演想让她在这部新影片中担任主角。

4、网络语义：星星；明星；星牌

例句：When you look at a star, you do not see its present condition. You see it as it used to be.

当你仰望一颗星星时，你看不到它的现状，你看到的只是它以前的样子