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单词 twenty-twenty
释义

twenty-twenty

(also 20/20)
adjective
Denoting vision of normal sharpness.‘I took you to the optometrist and she said that you had perfect twenty-twenty vision… I don't understand machines these days… ‘she mumbled to herself and walked back out.’...
  • They slowly faded into the lenses, leaving only crystalline images, better than twenty-twenty vision.
  • For example we could make sure they had something as simple as twenty-twenty vision, or something as complicated as great strength.

Origin

Late 19th century: the Snellen fraction for normal visual acuity (see Snellen test).

Rhymes

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更新时间:2024/12/23 0:50:38