liǎng / guó / shǐ / zhě / zài / zhòng / rén / miàn / qián / méng / shì / chéng / nuò / yǒng / yuǎn / hù / bù / qīn / fàn

两国使者在众人面前盟誓，承诺永远互不侵犯。

The envoys of the two countries swore an oath of alliance before everyone, promising never to attack each other.