invisible and unidentified matter that is believed to account for up to 90% of the universe's mass
| 单词 | dark matter |
| 释义 | dark matternouninvisible and unidentified matter that is believed to account for up to 90% of the universe's mass |
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英语词典包含66266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。