用户可以向现有的书本中添加新章节，或者使用Flex的工具制作全新内容的教材。

Users can add chapters to existing texts or create completely new material using the Flexr tool.

youdao

我的“非卖品”是我为班级和学校社团制作的一些海报，以及让我回忆起难忘的毕业旅行的书本。

My "Not For Sale" items are the posters I made for my class and school clubs. And piles of books remind me of an unforgettable trip before graduation.

youdao

我的“非卖品”是我为班级和学校社团制作的一些海报，以及让我回忆起难忘的毕业旅行的书本。

My "Not For Sale" items are the posters I made for my class and school clubs. And piles of books remind me of an unforgettable trip before graduation.

youdao