Chinese Idiom 115

Meaning: Literally “sincere heart, sincere will,” it represents honesty and earnestness.

Usage: Used in apologies, gratitude, or efforts to help others.

Example:
"他诚心诚意地道歉，最终获得了原谅。"
(tā chéng xīn chéng yì de dào qiàn, zuì zhōng huò dé le yuán liàng)
— "He sincerely apologized and was ultimately forgiven."