残留

残留	cán liú	to remain; to be left over / residual; remnant / residue
残	cán	to destroy / to spoil / to ruin / to injure / cruel / oppressive / savage / brutal / incomplete / disabled / to remain / to survive / remnant / surplus
留	liú	old variant of 留
留	liú	to leave (a message etc) / to retain / to stay / to remain / to keep / to preserve
留	liú	old variant of 留