死敌

suǒ yǒu mài guó zéi dōu shì rén mín de sǐ dí

所有卖国贼都是人民的死敌。

All traitors are the enemies of the people.

tā jìng tóng zì jǐ de sǐ dí táng ēn jié chéng le péng you

他竟同自己的死敌唐恩结成了朋友。

He actually made friends with his arch enemy, Doune.

tā zhī dào wǒ men kě néng huì chéng wéi tā de sǐ dí

他知道我们可能会成为他的死敌。

He knew that we could be an implacable foe.