English Dictionary

bifocals

noun

Spectacles that have corrective lenses of two different powers; used by people who need both distance and reading glasses.

She wore bifocals to help her see both near and far.

意味（1）

Spectacles that have corrective lenses of two different powers; used by people who need both distance and reading glasses.

He unfolded a pair of bifocals and thrust them as far up the bridge of his nose as possible.