| 单词 | observer |
| 释义 | observer n. 1. a person who observes. 2. an interested spectator. 3. a person who attends a conference etc. to note the proceedings but does not participate. 4. a a person trained to notice and identify aircraft. b a person carried in an aeroplane to note the enemy's position etc. |
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英语词典包含43808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。