单词 | on book |
释义 | Definition of on book in English:on bookadverb ˈɒn bʊk Theatre
adjective ˈɒn bʊk Theatre
Origin1980s. From on + book, after off book. Definition of on book in US English:on bookadverbˈɒn bʊk Theatre
adjectiveˈɒn bʊk Theatre
Origin1980s. From on + book, after off book. |
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