mindmap root((明亮)) bright implies emitting or reflecting a high degree of light: one of the ~est stars in the sky. brilliant implies intense and often sparkling brightness: ~ diamonds. radiant stresses the emission or seeming emission of rays of light: an imposing figure in ~ armor. （ray是一根根的光即光线, 中文中，光芒指向四面八方放射的强烈光线，光辉则指强烈的光芒，光华和光辉同意） luminous implies emission of steady, suffused, glowing light by reflection or in surrounding darkness: ~ white houses dot the shore. lustrous stresses an even, rich light from a surface that reflects brightly without sparkling or glittering: the ~ sheen of fine satin.