次序 (cì xù): sequence; order

Please line up in the order of your numbers, and don't cut in line.

These documents must be organized in order of date; otherwise, it will be very troublesome to find them.

The teacher rearranged the scrambled words in alphabetical order, making it easier for us to remember them.

The meeting proceeded in the order of the agenda, and each topic had a fixed discussion time.

In the library, books are arranged in order of the authors' surnames, which makes it convenient to find books.

Please put these photos in order of the time they were taken, and don't mess them up.