Read Edit View history 出自肺腑 chūzìfèifǔ heartfelt Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 出自肺腑 chūzìfèifǔ heartfelt from the bottom of one's heart 他的感激之情完全是出自肺腑的。 Edit Delete References Add reference No references for this word.