色彩柔和、经济耐用，活页设计、典雅高贵。

Gentle colors, economical and durable, the loose leaf is designed, elegant and noble.

youdao

封面式插袋设计，多种颜色可供选择，活页设计，内页更换简易方便。

Cover-typed sidekick designed, many colors for choice, ring binder designed, it is easy to replace the interior pockets.

youdao

窗口式插袋，便于书写、记录；多种颜色可供选择，活页设计，内页更换简易方便。

Windou-type sidekick, convenient for writing and recording; many colors for choice, ring binder designed, it easy to replace the interior pockets.

youdao