如何理解mainlyThere are mainly three kinds of race in the world:the white race,the blace race…….mainly是副词啊,在这个句子里如何理解?可BE动词后不应该跟形容词吗？

如何理解mainlyThere are mainly three kinds of race in the world:the white race,the blace race…….mainly是副词啊,在这个句子里如何理解?可BE动词后不应该跟形容词吗？ 英文you are nothing如何理解我不怎么理解 如何理解 如何理解 如何理解 如何理解 如何理解“These are shoes.” 是“这些是鞋子”还是“这（双）是鞋子?” 如何理解Men are cruel,but Man is kind这句话 some children are arguing about what TV programmes to watch 这句话如何理解 There Are Some Things You Can't Get Away Without中WITHOUT如何理解 a 1998 study found that women who are depressed have a risk..结构如何理解 Results yielded from the analysis are generalizations made through induction.这句如何翻译,怎么理解 懂得进!这句话如何理解?Small sorrows speak; great sorrows are silent. 二元论如何理解,一元论如何理解 如何理解这句英语.We are paid by the boss on the last friday of each month,在每个月的最后一个星期五老板付给我们薪水.如何理解are paid by the boss的语法. “情”字如何如何理解? 概率公式如何理解 如何做阅读理解