这套百科全书有三卷。
The encyclopedia is available in three ___volumes.
这部小说系列共有五卷,每卷探索一个不同角色的故事。
The novel series consists of five ___volumes, each exploring a different character's story.
她将全套历史卷册捐赠给了图书馆。
She donated the complete set of historical ___volumes to the library.