bifocals

英式音标bifocals怎么读

美式音标bifocals怎么读

词汇归类 TEM8

bifocals词义

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n. 远视近视两用的眼镜

词态变化

形容词: bifocal;

中文词源

bifocals 双光眼睛

前缀bi-, 二。词根foc, 焦点,见focus.


bifocals英文词源

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bifocals (n.)
"bifocal spectacles," 1899, see bifocal. Conceived by Benjamin Franklin, but called by him double spectacles.