相关单词同義詞casebound, clothbound, hard back, 近義詞 book 書, hardback 精裝本, hardbacked 精裝的, hardbound 精裝的臨近詞hard, Hardorp相似詞hard/tough cheese! idiom, hardback, hardball, hardboard, harden, harden your heart idiom, hardened, hardly, 返回 hardcover