grey area

1. N-COUNT If you refer to something as a grey area, you mean that it is unclear, for example because nobody is sure how to deal with it or who is responsible for it, or it falls between two separate categories of things. 灰色區域 (難以処理、責任不明或範疇不清的事物)

At the moment, the law on compensation is very much a grey area. 儅前，關於賠償的法律很大程度上是一個灰色區域。