bifocal
US /ˌbaɪˈfoʊ.kəl/
UK /ˌbaɪˈfəʊ.kəl/
形容詞
雙光的
having two different optical powers, one for near vision and one for far vision, typically used in eyeglasses
範例:
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My grandmother wears bifocal glasses to help her read and see distant objects.
我奶奶戴著雙光眼鏡，幫助她閱讀和看遠處的物體。
•
He needs bifocal lenses because his vision has changed with age.
他需要雙光鏡片，因為他的視力隨著年齡增長而改變。
名詞
雙光眼鏡, 雙光鏡片
a bifocal lens or a pair of bifocal glasses
範例:
•
He put on his bifocals to read the small print.
他戴上雙光眼鏡閱讀小字。
•
Many older adults rely on bifocals for their daily vision needs.
許多老年人依靠雙光眼鏡滿足日常視力需求。