維基辭典YuePhrase
Original phonetic: /t͡sɵy̯³⁵ tʰiːm²¹ sɐm⁵⁵ fuː³⁵/
01
Someone who speaks pleasantly while secretly worried, burdened, or suffering.
Examples
她嘴甜心苦，常常笑着安慰別人，卻默默承受自己的苦衷
She speaks kindly but carries a heavy heart, often smiling to comfort others while quietly bearing her own burdens.
02
Someone who seems kind or flattering outwardly but harbors ill intent or secretly schemes.
Examples
那些人兒，嘴甜心苦，你要仔細提防。
Those people speak sweetly but have bitter hearts; you need to be very cautious.