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

某些事实使我相信他对我们忠。

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

新总统对忠诚军官进行了清洗。

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

忠实工作人员把参议员们慎重行为暴露给新闻刊物。

He is disloyal to his cause.

他对事业忠诚。

The disloyal thought was instantly suppressed.

这个忠念头被立刻打住。