城門失火，殃及池魚

a fire in the city gates is also a calamity for the fish in the moat (idiom); the bystander will also suffer / fig. you can't escape responsibility for your actions / ask not for whom the bell tolls - it tolls for thee

city walls / city / town / CL:座[zuo4],道[dao4],個|个[ge4]

city gate

gate / door / CL:扇[shan4] / gateway / doorway / CL:個|个[ge4] / opening / valve / switch / way to do something / knack / family / house / (religious) sect / school (of thought) / class / category / phylum or division (taxonomy) / classifier for large guns / classifier for lessons, subjects, branches of technology / (suffix) -gate (i.e. scandal; derived from Watergate)

to lose / to miss / to fail

to catch fire; to be on fire

fire / urgent / ammunition / fiery or flaming / internal heat (Chinese medicine) / hot (popular) / classifier for military units (old) / Kangxi radical 86

calamity

to bring disaster to

and / to reach / up to / in time for

pond / reservoir / moat

surname Yu

fish / CL:條|条[tiao2],尾[wei3]