bifocals的意思

bifocals

英式音标[,baɪ'foklz]
美式英标[baɪ'fəʊkəlz]

基本解释

n. 远视近视两用的眼镜

中文词源

bifocals 双光眼睛

前缀bi-, 二。词根foc, 焦点，见focus.

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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