- ?276–?194 bc, Greek mathematician and astronomer, who calculated the circumference of the earth by observing the angle of the sun's rays at different places
| 单词 | eratosthenes |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 Er•a•tos•the•nes (er′ə tos′thə nēz′),USA pronunciation n.
Collins Concise English Dictionary © HarperCollins Publishers:: Eratosthenes /ˌɛrəˈtɒsθɪˌniːz/ n
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