lens
/lenz/
n. 透镜;镜片;镜头;晶状体retina
/ˈretənə/
n. 视网膜stuffed
/stʌft/
adj. 充满的rod
/rɑːd/
n. 杆;竿;棒cone
/koʊn/
n. 圆锥体respective
/rɪˈspektɪv/
adj. 分别的;各自的incredibly
/ɪnˈkredəbli/
adv. 极端地;极其;令人难以置信principally
/ˈprɪnsəpli/
adv. mainly 主要地distinguish
/dɪˈstɪŋɡwɪʃ/
v. 区分;辨别;分清majority
/məˈdʒɔːrəti/
n. the largest part of a group of people or things 大部分;大多数huddle
/ˈhʌdl/
v. 挤在一起
huddled/ˈhʌdld/
central
/ˈsentrəl/
adj. most important 最重要的;首要的;主要的spot
/spɑːt/
n. a small round area that has a different colour or feels different from the surface it is on 斑点macula
/'mækjʊlə/
n. 黄斑区
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