心知肚明 (sam1 zi1 tou5 ming4) — Literally "the heart understands and the stomach knows". in Cantonese
samˉ¹心ziˉ¹知touˏ₅肚mingˎ₄明Mandarin Pinyin: xin1 zhi1 du4 ming2
Meaning of 心知肚明
nounLiterally "the heart understands and the stomach knows".
noun"I know in my heart and in my stomach..."
nounto be made aware of without being informed