"青书"是个多义词，它可以指青书（汉语词语）,青书（网络用语）,青书（品牌）。
在学完了剑桥少儿英语这一系列的教材之后，他们开始学习青少版新概念系列的书。
After completing the Cambridge series of books, the students have moved onto the Young Learner New Concept series.
那晚陆菲青心想行藏已露，此地不可再居，决定留书告别。
Kozo has been exposed that night Lufei Qing thought, here no longer living, decided to stay in the book Farewell.
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