The dark frame accentuates the brightness of the picture.

深色画框更显出画的明亮色彩。

The brightness of the paint has worn off a little.

油漆的光泽有些磨损了。

Stars vary in brightness.

星星的光亮度各不相同。

Her eyes squinted against the brightness.

亮光刺得她眯起眼睛。

She switched on the light, wincing at the sudden brightness.

她打开了灯，突如其来的强烈光线刺得她不敢睜眼。