double duty 的英语意思
double dutyˌdouble ˈduty noun 
查看全部语言翻译 do double duty to do more than one job or be useful for more than one thing at the same time同时承担多项工作或同时具有多种用途double duty as
The sofa does double duty as a guest bed.这张沙发兼作客床。
查看全部语言翻译 do double duty to do more than one job or be useful for more than one thing at the same time同时承担多项工作或同时具有多种用途double duty as The sofa does double duty as a guest bed.这张沙发兼作客床。