treason

/ˈtrizən/

a crime that undermines the offender's government

中文释义：叛国罪；背叛

The spy was convicted of treason and sentenced to life imprisonment.

这名间谍被判叛国罪，处以终身监禁。

In many countries, treason is considered the most serious crime against the state.

在许多国家，叛国罪被视为最严重的危害国家罪行。