诚挚 (chéng zhì): จริงใจ

He held my hand and sincerely apologized to me, saying that this time he was indeed wrong and hoped I could forgive him.

At the graduation ceremony, the principal expressed sincere blessings to all graduates, hoping everything would go smoothly on their future paths.

She wrote a sincere thank-you letter to her friend, thanking her friend for helping her without hesitation when she was at her most difficult.

During the interview, he looked at the interviewer with a sincere gaze and earnestly said that although he lacked experience, he was willing to study hard and adapt to the job as soon as possible.