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lens

noun
 
🔊/lenz/
🔊/lenz/
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  1.  
    a curved piece of glass or plastic that makes things look larger, smaller or clearer when you look through it透镜；镜片
    • a pair of glasses with tinted lenses一副有色镜片眼镜
    Extra Examples
    • Put your hand in front of your right lens and just look through your left lens.把你的手放在右边的镜片前，只用左边的镜片看。
    • She wears glasses with very thick lenses.她戴的眼镜镜片很厚。
    Oxford Collocations Dictionaryadjective
    • strong
    • thick
    • coloured/​colored
    • …
    lens + noun
    • cap
    • cover
    preposition
    • through a/​the lens
    See full entry
  2.  
     a piece of equipment that is part of a camera, containing one or more lenses
    • a camera with an adjustable lens带有可调镜头的照相机
    • a view of Mount Kilimanjaro as seen through Eddie's camera lens透过埃迪的摄影机镜头看到的乞力马扎罗山风景
    • a lens cap/cover镜头帽；镜头盖
    • a long-lens shot of a rare bird用长焦镜头拍摄的珍禽照片
    see also fisheye, telephoto lens, wide-angle lens, zoom lens
  3.  
    (informal) a contact lens (= a small round piece of thin plastic that you put on your eye to help you see better)
    • Have you got your lenses in?你戴了隐形眼镜吗？🔊🔊
  4. (anatomy解剖学) the clear part of the eye, behind the pupil, that focuses light so that you can see clearly（眼球的）晶状体
    Topics Bodyc1
    5. Word Originlate 17th cent.: from Latin, ‘lentil’ (because of the similarity in shape).