grown-up复数是什么

　　例句：

　　Our party was composed of three grown-ups and four children.

　　我们这组是由三个成年人和四个孩子组成的。

　　It doesn't always work that way with grown-ups.

　　这话对成年人来说通常不起作用。

　　Not children& these were real grown-ups reading children's books.

　　不是孩子&这些读着儿童书籍的人是如假包换的成年人。