Zhànzhēng gěi zhè zuò chéngshì liúxià le shēnshēn de bāhén.
The war left deep scars on this city.
Tips
usage
疤痕 is used both literally (physical scars) and figuratively (emotional or historical scars). 伤疤 (shāngbā) is a more colloquial synonym. The idiom 好了伤疤忘了疼 means 'once the wound heals, one forgets the pain.'