单词 | sundial |
释义 | sundial (sʌndaɪəl ) Word forms: sundials countable noun A sundial is a device used for telling the time when the sun is shining. The shadow of an upright rod falls onto a flat surface that is marked with the hours, and points to the correct hour. There is nothing obvious about the construction of a proper sundial. Image of sundial © Darq, Shutterstock |
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