一个漂亮的花艺布置点亮了整个房间。

A beautiful flower ___arrangement brightened up the room.

她决定报名参加一个花艺课程。

She decided to enroll in a course on flower ___arrangement.

图书馆按主题进行的书籍摆放让研究方便了许多。

The library's book ___arrangement by subject makes research much easier.