Tā / men / zài / zhòng / rén / miàn / qián / shà / xuè / wéi / méng / chéng / nuò / yǒng / yuǎn / hù / xiāng / zhī / chí

他们在众人面前歃血为盟，承诺永远互相支持。

They swore a sacred oath in front of everyone and promised to support each other forever.