Write it on the blackboard/in your exercise book/workbook/ a piece of paper .

把它写在黑板上/你们的练习本上/活动用书/一张纸上。

youdao

We are printing business agency for overseas customers, including book, periodical, manual, calendar, leaflet, exam paper, exercise book, etc.

代理海外客商的各类印刷业务，如：图书、期刊、工作手册、挂历、公司介绍、考卷、练习册等。

youdao

We are printing business agency for overseas customers, including book, periodical, manual, calendar, leaflet, exam paper, exercise book, etc.

代理海外客商的各类印刷业务，如：图书、期刊、工作手册、挂历、公司介绍、考卷、练习册等。

youdao