| 单词 | Coalsack |
| 释义 | Coalsack /kohl"sak'/, n. Astron. a dark nebula in the southern constellation Crux, whose dust particles obscure light from Milky Way stars behind it. Also, Coal Sack. Also called Southern Coalsack. [1625-35; COAL + SACK1] |
| 随便看 |
英语词典包含168451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。