Xiāoyān sàn qù hòu, shìbīng men qīngdiǎn shāngwáng.
After the smoke cleared, soldiers counted the casualties.
Tips
memory
硝 refers to saltpeter (potassium nitrate), a key ingredient in gunpowder — so 硝烟 is literally 'saltpeter smoke,' the acrid smoke of black-powder weapons.