- 忠心耿耿 zhōngxīngěnggěng loyal and devoted(idiom) intensely loyal and devoted; faithful and true; full of integrity
- 赤胆忠心 chìdǎnzhōngxīn utter devotionextremely loyal and wholehearted; serving someone or one's country with body and soul
- 忠心赤胆 zhōngxīnchìdǎn wholehearted devotion(idiom) extremely loyal and devoted; faithful through and through
- 耿耿忠心 gěnggěngzhōngxīn loyal and devoted(variant form) dedicated and faithful; unwavering loyalty