炮火连天 Traditional 砲火連天 pào huǒ lián tiān 🔊 cannon firing for days on end (idiom) + Keep this word Meanings pào huǒ lián tiān 砲火連天 cannon firing for days on end (idiom); enveloped in the flames of war Its characters 炮pàocannonHSK 7–9火huǒfireHSK 4连liánto linkHSK 4天tiāndayHSK 1