历史学家应当忠于材料,而不是为了迎合潮流随意改写结论。Lìshǐxuéjiā yīngdāng zhōngyú cáiliào, ér bú shì wèile yínghé cháoliú suíyì gǎixiě jiélùn.Historians should remain true to the evidence, rather than casually rewriting conclusions to suit current trends.
翻译必须忠于原文的意思。Fānyì bìxū zhōngyú yuánwén de yìsi.Translation must be faithful to the meaning of the original.
这只狗一生忠于自己的主人。Zhè zhī gǒu yīshēng zhōngyú zìjǐ de zhǔrén.This dog stayed loyal to its owner its whole life.