叛逃者

tā chéng le yī wèi pàn táo zhě

他成了一位叛逃者。

He became a defector.

nǐ shǒu shang yǒu gè bèi shōu mǎi de pàn táo zhě

你手上有个被收买的叛逃者。

You've got a paid defector on your hands.