I am led to believe that he is disloyal to us.

某些事实使我相信他我们不忠。

The new president carried out a purge of disloyal army officers.

新不忠诚的军官进行了清洗。

Disloyal staff members exposed the senator's indiscretions to the press.

不忠实的工作人员把参议员们不慎重的行为暴露给新闻刊物。

He is disloyal to his cause.

他事业不忠诚。

The disloyal thought was instantly suppressed.

这个不忠的念头被立刻打住。