brightness

brightness

['braitnis]

n.光亮, 明亮,聪明

例句与用法：

The act or an instance of gradually diminishing in brightness, loudness, or strength until actual disappearance occurs.

逐渐消失在亮度、响度或精力上逐渐减弱直至全部消失的活动或例子

A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter.

光度视网膜亮度单位，相当于每平方米有一烛光亮度的表面，通过一平方毫米的瞳孔区域，到达视网膜的光线数量

Stars vary in brightness.

星星光亮度不同。

The light hurt my eyes with its brightness.

明亮的灯光刺痛了我的眼睛。

词形变化：

副词: brightly | 形容词比较级: brighter | 形容词最高级: brightest |

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n.[U]

1. 明亮, 光辉; 鲜艳

2. 亮度

3. 活泼, 愉快

4. 聪颖, 伶俐