grey area

汉语翻译

英语解释：

名词 grey area:

1. an intermediate area; a topic that is not clearly one thing or the other
   同义词：gray area

例句：

1. When the rules for police procedure were laid down, a lot of grey areas remained.
   警方的程序规章定立後，遗留下许多难以处理的灰色区域。