treason

/ˈtrizən/

a crime that undermines the offender's government

Chinese meaning: 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。