對,'ambiguity' can be negative, 我認為你說的
She was the centre of the group 就ambiguous. 這裏的group是具體的entity (group of people),所以she was the centre of the group 會被誤解為一組人她站在中間。
She was the centre of the group 就ambiguous. 這裏的group是具體的entity (group of people),所以she was the centre of the group 會被誤解為一組人她站在中間。