grey area

漢語翻譯

英文解釋：

名詞 grey area:

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

例句：

1. When the rules for police procedure were laid down, a lot of grey areas remained.
   警方的程式規章定立後，遺留下許多難以處理的灰色區域。