at the expense of...以牺牲…的利益为代价If you achieve something at the expense of someone, you do it in a way which might cause them some harm or disadvantage. 【搭配模式】：PHR after v•But skeptics worry that costs may be trimmed at the expense of the patient...但是持怀疑态度的人担心费用的削减会以牺牲病人的利益为代价。•According to this study, women have made notable gains at the expense of men.根据这项研究，女性以牺牲男性的利益为代价而获得了显著的收益。
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