n.[U]

1. 明亮，光輝；鮮豔
   The brightness of the sun cheered him up.

   太陽的光輝使他心情好了起來。

2. 亮度
   The moon bathed the landscape in her pale cold rays at a different phase and with varied brightness.

   在不同的時候，月亮以不同的亮度將她慘淡的冷光沐浴在地貌上。

3. 活潑，愉快
   Katie's face was full of the soft brightness which indicated a peaceful heart.

   凱蒂的臉充滿了柔和與愉快的表情，顯示她內心平靜。

4. 聰穎，伶俐
   Their little son's brightness charmed all the guests.

   他們小兒子的聰穎使客人們很開心。