functionality实用性(抽象) function功能(具体)functionality1 [uncountable ]the quality in sth of being very suitable for the purpose it was designed for 实用；符合实际2 [uncountable ]the purpose that sth is designed for or expected to perform 设计目的；设计功能◆ Manufacturing processes may be affected by the functionality of the product. 生产过程可能要受到产品设计目的的影响。3 [uncountable ,? countable ]( computing 计 ) the range of functions that a computer or other electronic system can perform （计算机或电子系统的）功能
