Tā yīnuòqiānjīn de xìnggé, ràng péngyou men dōu hěn xìnrèn tā.
Her reputation for always keeping her word makes her friends trust her deeply.
Tips
history
From the Shi Ji biography of Ji Bu (《史记·季布栾布列传》). A Chu saying ran: 得黄金百斤,不如得季布一诺 — 'getting a hundred catties of gold is not as good as getting one promise from Ji Bu.' The idiom is the concentrated praise of that absolute reliability.
register
Strong praise. Use for people with a genuine track record of keeping their word, or as a standard to aspire to in commercial or personal ethics.