If you accuse someone of favouritism, you disapprove of them because they unfairly help or favour one person or group much more than another.
例句
Maria loved both the children. There was never a hint of favouritism.瑪麗亞對兩個孩子都疼愛有加，向來一視同仁。
英漢詞典釋義
n.
<貶>偏愛;偏袒
an obvious case of favouritism一件顯然偏袒一方的事例He resigned over accusations of favouritism.由于被指責有偏心，他辭職了。He strongly attacked corruption and favouritism in the government.他猛烈抨擊政府的腐敗與徇私。
英英詞典釋義
Noun
1. an inclination to favor some person or group
2. unfair treatment of a person or group on the basis of prejudice