单词 | Hipparchus |
释义 | Hip·par·chus (hĭ-pärkəs) fl. second century BC. Greek astronomer who discovered the precession of the equinoxes, developed the techniques of trigonometry, and catalogued the positions of 850 stars in the earliest known star chart. |
随便看 |
英语词典包含135693条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。