ground rules
noun [ plural ] uk/ˈɡraʊnd ˌruːlz/ us/ˈɡraʊnd ˌruːlz/
基本原则，基本准则
the principles on which future behaviour is based
In all relationships a few ground rules have to be established. 要保持任何一种关系，都必须确立一些基本原则。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。