on fire   (TTS發音)

1. burning著火；失火

    We saw a house on fire when we passed the road. 我們經過這條路時，看到一所房子失火了。

2. in a rage憤怒；急切

    They were on fire with zeal to defend their native land. 他們熱血沸騰，決心捍衛自己的祖國。

    He was on fire to rejoin his family after an absence of five years. 他急切地想和闊別5年的家人團聚。