Before war broke out, the state would always repair and strengthen its city walls.
Tips
usage
缮 has two literary senses: to repair/mend (as in 修缮, to renovate) and to copy a document out fair (as in 缮写, to transcribe). It is formal, not used in casual speech.
Left-side silk radical, the side form of 糸. It hints at the original sense of mending with thread, which broadened to repairing and to neatly writing out documents.