mindmap root((光滑)) sleek suggests a smoothness or brightness resulting from attentive grooming or excellent physical condition: a ~ race horse. slick suggests extreme smoothness that results in an unsafe or slippery surface: slipped and fell on the ~ floor. glossy suggests a surface that is smooth and highly polished: photographs having a ~ finish. silken, silky imply the smoothness and luster as well as the softness of silk: ~ hair（en）; expensive dresses made of ~ fabrics（y）. satiny applies to what is soft and smooth and shining: a flower's ~ petals.