| 词汇 | class book |
| 释义 | Definition of class book in English:class booknoun ˈklɑːs bʊkˈklas bʊk
OriginMid 18th century (in an earlier sense). From class + book. Definition of class book in US English:class booknoun
OriginMid 18th century (in an earlier sense). From class + book. |
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