| 单词 | Portland sand |
| 释义 | Definition of Portland sand in English:Portland sandnoun Geology
OriginMid 19th century. Definition of Portland sand in US English:Portland sandnoun Geology
OriginMid 19th century. |
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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。