| 单词 | permanent air |
| 释义 | Definition of permanent air in English:permanent airnoun historical
OriginMid 17th century; earliest use found in Robert Boyle (1627–1691), natural philosopher. Definition of permanent air in US English:permanent airnoun historical
OriginMid 17th century; earliest use found in Robert Boyle (1627–1691), natural philosopher. |
| 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。