• bifocals

    英:[baɪ'fəʊkəlz]  
    美: [,baɪ'foklz] 

    bifocals 基本解释

    • n. 远视近视两用的眼镜

    bifocals 词态变化

    形容词: bifocal;

    bifocals 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

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