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单词 bifocal
释义 bi·focal
I. \(ˈ)bī+\ adjective
Etymology: International Scientific Vocabulary bi- (I) + focal
1.
 a. : having two focal lengths
 b. of an eyeglass lens : having one part that corrects for near vision and one for distant vision
2. : marked by two distinct often seemingly incompatible approaches or points of view
 < the bifocal nature of medieval historiography with its mixture of myth and history — Keith Spalding >
 < an Indian, educated in England and America, and hence able to give a sort of bifocal view of the people and problems of Asia — Nation >
II. noun
(-s)
1. : a bifocal glass or lens
2. bifocals plural : eyeglasses with bifocal lenses
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更新时间:2024/12/25 0:57:21