bi·fo·cal
adjective/ˌbaɪˈfəʊkl/
/ˌbaɪˈfəʊkl/
[only before noun]- bifocal glasses are made of an upper part, for looking at things at a distance, and a lower part, for looking at things that are close to you
双光眼镜（上半片为看远，下半片为看近）
| 单词 | bifocal |
| 释义 | bi·fo·caladjective/ˌbaɪˈfəʊkl/ /ˌbaɪˈfəʊkl/ [only before noun]
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