to double-cross
那家伙吃里爬外，受这一方好处，却暗为另一方效劳
that guy is double-crossing his employer; he is taking advantage of one employer while working for another secretly
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。