怒形于色

to betray anger (idiom); fury written across one's face

anger / fury / flourishing / vigorous

to appear / to look / form / shape

to go / to take / sentence-final interrogative particle / variant of 於|于[yu2]

(of time or place) in; at; on / (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for / (indicating a source) from; out of / (used in comparison) than / (used in the passive voice) by

to show one's feelings / to show it in one's face

color / CL:種|种[zhong3] / look / appearance / sex

(coll.) color / used in 色子[shai3 zi5]