英语中many意思是许多，后面接名可数名词的复数 例如many books，many students。
但也可以构成 Many a加可数名词的单数。意义上表达复数意义。many a student.相当于many students。 Manya story.相当于many stories。但在形式上maby a加可数名词的单数做主语，谓语动词一定要用单数。例如 Many a student is reading in the library. Many students are reading in the library.
