衷心zhōngxīnheartfelt; wholehearted; cordialHSK 7-9PronunciationzhōngxīnExample sentence我们衷心感谢您的帮助。wǒmen zhōngxīn gǎnxiè nín de bāngzhù.We sincerely thank you for your help.Read and choose an answerOne fixed sampleExplore a sample