Opticator
(儀器的)光學系統部分, 光學扭簧測微儀
?? 醫學釋義
（儀表的）光學部分
??? 情景例句
Will dinner be served on this train?
火車上供飯嗎？
Your friend was here a week ago,wasn't he?
一個星期前，你的朋友曾在這里，是不是？
Li Lei went into the school and found Miss Zhao in the school library.
李壘走進學校，在學校圖書館里找到趙小姐。