单词	pupil
释义	pupilpupil /ˈpyupəl/ ●○○ noun [countable] Etymology ETYMOLOGYpupil Origin: (1) 1300-1400 Old French pupille, from Latin pupa girl, doll; because of the small image of yourself which you can see in someone else’s eye Collocations COLLOCATIONS► pupils ... dilate  The drops cause the pupils to dilate (=get bigger). 1 science, biology the small black round area in the middle of the eye which controls how much light is allowed to enter the eye:  The drops cause the pupils to dilate (=get bigger).2formal someone who is being taught, especially a child SYN student [Origin: (1) 1300–1400 Old French pupille, from Latin pupa girl, doll; because of the small image of yourself which you can see in someone else’s eye]
随便看	citation cite citified citizen citizenry citizen's arrest citizens band citizenship citric acid citric acid cycle citron citronella citrus city city council city desk city editor city father city hall city planner city planning city slicker city-state citywide civet

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