壊れる vs 壊す (intrans/trans pair)

The intransitive/transitive verb pair 壊れる ('break, become broken,' no agent) vs 壊す ('break [something],' transitive with agent). 機械が壊れた ('the machine broke') vs 機械を壊した ('broke the machine'). A core pair for describing breakage — 壊れる for the breaking happening, 壊す for the agent causing it.