library extension

例句：

1. 1. The library has a large collection of books that can be accessed online.
   图书馆拥有大量的书籍，可以在线访问。
2. 2.The library extension provides additional space for students to study and work.
   图书馆延伸部分为学生提供了额外的学习和工作空间。
3. 3. The library extension is designed to accommodate more people and provide better services.
   图书馆延伸部分旨在容纳更多人并提供更好的服务。