gǔ / shū / zhōng / de / shǐ / yán / biǎo / shì / zhèng / zhòng / de / fā / shì / huò / shuō / chū / chéng / shí / de / huà古书中的“矢言”表示郑重地发誓或说出诚实的话。In classical books, shiyan means to make a solemn vow or speak honestly.