【正确答案】 D

【答案解析】[解析] 本句意思是“一天激烈的战斗后，敌军最终不得不从占领的地区撤军”。retreat“撤退”，不及物动词，如，The troop made good their retreat from the occupied city．部队从沦陷的城市安全撤出。return“返回”，如，Our investment accounts return a high rate of interest．我们的投资项目利润回报很高。dismiss“解雇”，如，The boss threatened to dismiss him from his job, but it's all a bluff．老板威胁说要解雇他，但这不过是恐吓而已。withdraw“撤回”，如，The troops have been withdrawn from the danger area．部队已经撤出危险地带。