1、He felt a deep sense of betrayal when he found out his best friend had been spreading rumors about him.
当他发现他最好的朋友一直在散布关于他的谣言时，他感到了深深的背叛感。
2、The betrayal of their country by the government officials shocked the entire nation.
政府官员对国家的背叛震惊了整个国家。