Home/us/used-bookused-bookUnknownSeenFamiliarMastered🇬🇧 UK/'ju:zd-bʊk/🇺🇸 USDefinitionsn.A book that has been previously owned and read; a secondhand book.二手书，旧书Root BreakdownRoot-deriveduseduse+bookother=used-book← Back to us
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