词汇	Midlife and old folks
释义	Midlife and old folks 中老年人
随便看	Specificities,Species Specificities,Substrate specificity specificity analysis Specificity and Sensitivity Specificity,Antibody Specificity,Antigenic specificity constant specificity-diffuseness specificity factor specificity factors specificity ige Specificity IgG specificity index specificity in serological reaction specificity investment Specificity of Acupoints specificity of antibody,dual specificity of association specificity of catalyst specificity of enzymes specificity of goods specificity of human capital specificity of manpower capital specificity of point