单词 | sundial |
释义 | sun·dialBrE /ˈsʌndaɪəl/ NAmE /ˈsʌndaɪəl/ noun a device used outdoors , especially in the past , for telling the time when the sun is shining . A pointed piece of metal throws a shadow on a flat surface that is marked with the hours like a clock , and the shadow moves around as the sun moves across the sky 日晷 |
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