Miànduì zhèzhǒng bù gōngpíng de duìdài, tā nùhuǒ-zhōngshāo què bù gǎn fāzuò.
Faced with such unfair treatment, she was burning with anger but didn't dare to explode.
Tips
memory
Literal image: 怒火 (rage-fire) 中 (in the heart) 烧 (burning). Imagine fire blazing inside the chest - that's exactly the feeling.
register
Stronger than 生气 (angry) or 愤怒 (indignant). Use for intense, barely contained rage, typically in narrative prose or dramatic speech, not casual complaint.