图书管理员按大小整理书架上的书。

Librarians ___organize the books on the shelves by size.

现代博物馆通常按主题而非年代来组织。

Modern museums are often ___organized thematically rather than chronologically.

我们需要组织会议日程，为社交活动留出更多时间。

We need to ___organize the conference schedule to allow more time for networking.