Man can only be betrayed by friends, and the enemy never has the opportunity to "sell" and "betray".
人只会被朋友背叛，敌人是永远都没有‘出卖’和‘背叛’的机会的。
He would rather die than betray his country to the enemy.
他宁愿死也不愿向敌人出卖自己的祖国。
Some people will betray the truth and turn over their brethren to the enemy.
许多人背叛了真理并向敌人交出他们的弟兄。
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