duìfāng rúguǒ zhēnde xiě cuò yě róngyì gǎi rúguǒ shì nǐ lǐjiě cuòle yě yǒu táijiē xiàlái

对方如果真的写错，也容易改；如果是你理解错了，也有台阶下来。

If they did write it wrong, it is easy to correct; if you misunderstood, it also gives you an out.