短語詞組短語field book circuit loss 勵磁電路損耗book loss or gain 賬面損益loss book 勞氏船級社沉船登記冊loss -book 沉船登記簿Loss of Book Debts Clause 欠款賬冊遺失Damage and loss of book 圖書損毀丟失 返回 book loss