| 单词 | sign system |
| 释义 | Definition of sign system in English:sign systemnoun
OriginMid 19th century; earliest use found in Congregationalist (Boston). Definition of sign system in US English:sign systemnoun
OriginMid 19th century; earliest use found in Congregationalist (Boston). |
| 随便看 |
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。