(1)唯一的(one and only;being the only one) [作attrib]：one's～complaint/motive/purpose 某人唯一的抱怨/动机/目的;the～cause of the accident/survivor of the crash 事故的唯一原因/空难的唯一幸存者;the～child of one's parents 父母唯一的孩子;He is the～heir to all that property. 他是那全部财产的唯一继承人。〖同〗only，exclusive，line，single;

(2)专(独)有的(belonging exclusively to one person or group)：take～command of a ship 独自指挥一艘船;have the～right of selling the article 拥有独家销售此种商品的权利;have～responsibility for a job 独自负责一项工作;buy the～right to a novel 买下一本小说的独家版权;〖同〗exclusive〖反〗shared，divided，joint;

→′solely adv 单独地;仅仅，唯一地