terra nullius
美
英
- 网络无主地；无主土地；无主地先占
n. | 1. in Australia, the idea and legal concept that when the first Europeans arrived in Australia the land was owned by no one and therefore open to settlement. It has been judged not to be legally valid. |
英汉词典包含292483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。