| 单词 | θ191707 |
| 释义 | society > communication > indication > signalling > visual signalling > luminous signals > [noun] (48) Subcategories:— flashing signal (4) — red or green signal (3) — pyrotechnic signals (15) — fire signal (25) — lamp indicating operating conditions (1) |
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英语词典包含1132095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。