| 单词 | optical double star |
| 释义 | optical double starnoun two stars that appear close together when viewed through a telescope but are not physically associated and are often separated by a great distance Compare binary star |
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英语词典包含233703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。