in an unfavourable position relative to someone or someone else
處于不利地位
stringent regulations have &B{put} British farmers &B{at a disadvantage}.
嚴(yán)格的規(guī)定使得英國(guó)的農(nóng)民處于不利地位。
so as to cause harm to one's interests or standing
對(duì)（某人）不利
his poor educational track record inevitably worked to his disadvantage.
他很差的學(xué)習(xí)成績(jī)記錄肯定會(huì)對(duì)他不利。