残留 (cán liú): Remain (Verb) — Meaning & Stroke Order

Despite thorough disinfection, a small number of microorganisms may still remain in the operating room.

Are you sure there are no expired food items left over in the refrigerator?

The residual problem of this pesticide in the soil has triggered widespread ecological concerns.

He wiped repeatedly to ensure there was not a single fingerprint left on the glass surface.