Definition of twenty-twenty in English:

twenty-twenty

(also 20/20)

adjective

Denoting vision of normal sharpness.
视力正常的
someone with previously perfect 20-20 vision may first notice this change around the age of 45
Example sentencesExamples
- I guess my twenty-twenty eyesight went out with the lights.
- It didn't take twenty-twenty vision to see the worry cross her features.
- ‘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.’
- For example we could make sure they had something as simple as twenty-twenty vision, or something as complicated as great strength.
- They slowly faded into the lenses, leaving only crystalline images, better than twenty-twenty vision.

Origin

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

Rhymes

al dente, aplenty, cognoscenti, divertimenti, lisente, plenty, portamenti, sente, twenty, venti

Definition of twenty-twenty in US English:

twenty-twenty

(also 20/20)

adjectiveˌtwen(t)ēˈtwen(t)ēˌtwɛn(t)iˈtwɛn(t)i

Denoting vision of normal sharpness.
视力正常的
someone with previously perfect 20-20 vision may first notice this change around the age of 45
Example sentencesExamples
- I guess my twenty-twenty eyesight went out with the lights.
- It didn't take twenty-twenty vision to see the worry cross her features.
- They slowly faded into the lenses, leaving only crystalline images, better than twenty-twenty vision.
- ‘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.’
- 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).

词汇	twenty-twenty
释义	Definition of twenty-twenty in English: twenty-twenty (also 20/20) adjective Denoting vision of normal sharpness. 视力正常的 someone with previously perfect 20-20 vision may first notice this change around the age of 45 Example sentencesExamples I guess my twenty-twenty eyesight went out with the lights. It didn't take twenty-twenty vision to see the worry cross her features. ‘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.’ For example we could make sure they had something as simple as twenty-twenty vision, or something as complicated as great strength. They slowly faded into the lenses, leaving only crystalline images, better than twenty-twenty vision. Origin Late 19th century: the Snellen fraction for normal visual acuity (see Snellen test). Rhymes al dente, aplenty, cognoscenti, divertimenti, lisente, plenty, portamenti, sente, twenty, venti Definition of twenty-twenty in US English: twenty-twenty (also 20/20) adjectiveˌtwen(t)ēˈtwen(t)ēˌtwɛn(t)iˈtwɛn(t)i Denoting vision of normal sharpness. 视力正常的 someone with previously perfect 20-20 vision may first notice this change around the age of 45 Example sentencesExamples I guess my twenty-twenty eyesight went out with the lights. It didn't take twenty-twenty vision to see the worry cross her features. They slowly faded into the lenses, leaving only crystalline images, better than twenty-twenty vision. ‘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.’ 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).
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