剑桥词典to deceive someone by working only for your own advantage in the (usually illegal ) activities you have planned together 欺骗（帮凶），蒙骗（同伙） The diamond thief double-crossed his partners and gave them only worthless fake jewels . 钻石大盗欺骗了同伙，给了他们一钱不值的假珠宝。 返回 double-cross