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brightness
🇺🇸 /bɹˈaɪtnʌs/
brightness 是名词,表示光亮、明亮程度,也可比喻人的聪明才智。
💡 记忆钩子
把 brightness 想成“发亮”:灯光或颜色发亮,是光亮;物体看起来有多亮,是明亮程度;人的头脑“发亮”,就引申为聪明才智。
📝 学习建议
- 先掌握“光亮、明亮程度”这条主线,再记住它在描述人的才智时的比喻义。
- 不要把 brightness 只理解成具体光源;它也可以表示人眼感受到的亮暗程度,通常是不可数名词。
📖 中文释义
noun
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core 光亮;明亮📖 指光线本身明亮,或一个空间、场景呈现出鲜明耀眼的光彩。它强调“发出或充满光”的性质,是这组词义的基础。💡 常用“the brightness of the light”或“increase the brightness”这样的结构。这个意思通常不可数,前面一般不加不定冠词;描述灯光、阳光和室内光线时都可以使用。不要把它误当成只指白色,彩色灯光或鲜艳色彩也能带来 brightness。uncountable usuallyThe brightness of the lamps made the room feel warm and lively.灯光的明亮让房间显得温暖而有生气。She lowered the brightness of the screen before going to bed.她睡觉前调低了屏幕亮度。
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core 亮度;明暗程度📖 指人眼感受到某个物体有多亮,也就是它呈现出来的明暗程度。这里不一定强调物体自己发光,屏幕、照片或颜色看起来有多亮也可以用这个词。💡 常用“adjust the brightness of + 设备或图像”以及“the brightness of + 物体”这样的模式。它通常仍是不可数名词,尤其常见于屏幕、相机和图像设置。不要把 brightness 和颜色的鲜艳度完全等同:brightness 重点是明暗,不是色彩是否浓艳。uncountable usuallyYou can adjust the brightness of the photo on your phone.你可以在手机上调节这张照片的亮度。
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common 聪明才智📖 把“发亮”从光线比喻到头脑,指一个人反应快、理解力强或有聪明的想法。这个意思不是外表明亮,而是精神和智力显得突出。💡 常用“the brightness of + 人”或“show brightness”来谈某人的才智。这个比喻义比表示光亮的用法更正式,也常带文学色彩;日常口语通常会直接说“intelligence”或“cleverness”。不要把它理解成单纯的开朗或乐观,那些通常描述性格和情绪。figuratively idiomatic uncountable usuallyHer brightness was clear from the questions she asked in class.从她在课堂上提出的问题就能看出她很聪明。
brightnesses
plural
📘 英文释义 (WordNet)
共 3 组
the location of a visual perception along a continuum from black to white
同义词集:
brightness
上位: light, lightness
下位: blaze, brilliance, brilliancy, dazzle, effulgence, flash, glare, glisten, glister, glitter, luster, lustre, radiance, radiancy, refulgence, refulgency, scintillation, shine, sparkle, splendor, splendour
the quality of being luminous; emitting or reflecting light
同义词集:
luminosity
brightness
brightness level
luminance
luminousness
light
its luminosity is measured relative to that of our sun
下位: glow, illuminance, illumination, luminescence
intelligence as manifested in being quick and witty
同义词集:
brightness
cleverness
smartness
上位: intelligence
🌳 词源
源自古英语,原义与“明亮、光辉”有关,后来由 bright 加名词后缀 -ness 构成。
From Middle English bryghtnes, brightnesse, from Old English beorhtnes (“brightness, splendor”), from Proto-West Germanic *berhtnassī, equivalent to bright + -ness. Cognate with Old High German berahtnessī, berahtnessi (“brightness”).
🔄 变式
brightnesses
plural
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