赤膽忠心

Simplified: 赤胆忠心

chìdǎnzhōngxīn ㄔˋ ㄉㄢˇ ㄓㄨㄥ ㄒㄧㄣ

    • lit. red-bellied devotion (idiom) wholehearted loyalty
    • to serve sb with body and soul

Character by character

Sources