specify/ˋspɛsə͵faI; ˈspesəfaI or ˈspesIfaI/v [T] specified , specifying , specifies to give information or instructions in an exact and detailed way 指明﹐说明﹐详述: +that The rules specify that competitors must be under 18 years of age. 规则中明确规定参赛者必须在 18 岁以下。+what/how etc He did not specify how this could be achieved. 他没有明确说如何去做到。