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单词
brightener
释义
WordReference Random House Unabridged Dictionary of American English © 2024
bright•en•er
(brīt
′
n ər),
USA pronunciation
n.
a person or thing that brightens.
Chemistry
a chemical or other agent used to increase brightness, as one added to toothpaste or detergent to intensify the cleansing or bleaching process.
brighten
+ -
er
1
1790–1800
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更新时间:2026/3/24 1:21:01