1、No wonder they talk about perfidious Albion, he mutters, and you can see why.
他低聲嘀咕著，難怪他們都說英國人背信棄義，現(xiàn)在知道為什么了。

2、Perfidious media managers; treachery in the name of truth.
背信棄義的媒體；打著真相名義的背信棄義。

3、Their feet will trample on the dead bodies of their perfidious aggressors.
他們將從背信棄義的侵略者的尸體上踏過。

perfidious翻譯