bifocals
更新时间：2025-04-05 22:13:02
英 [baɪ'fəʊkəlz]美[,baɪ'foklz]
TEM8
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.
英文词源
- bifocals (n.)
- "bifocal spectacles," 1899, see bifocal. Conceived by Benjamin Franklin, but called by him double spectacles.