999英语网 单词
bifocals的意思
bifocals
英 [ba'fklz]
美 [,ba'foklz]
- 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.