a note, either in writing on an official record, or in somebody’s mind, of something you have done or said that makes people think badly of you（记录在案的或留在别人印象中的）污点
She earned a black mark for opposing company policy.她因反对公司政策而得到考绩不良的评语。🔊🔊
The public scandal was a black mark against him.那条尽人皆知的丑闻成了他的一个污点。🔊🔊