novel

literature

art

Anime/humor

Entertainment fashion

travel

Map/geography

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Marriage/sex

Nurture/grow

Health/mental health

sports

Self-actualization/inspiration

operate

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Political/military affairs

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ancient books

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Teaching AIDS for primary and secondary schools

foreign language

check

textbook

reference book

Popular science books

Computer/network

Medical science

The original edition of this book.

science and technology

Science, literature and business textbooks