川流不息 (chuān liú bù xī): A continuous flow (noun/idiom) — Meaning & Stroke Order

Even though it's late at night, vehicles continue to flow ceaselessly on the highway.

This river flows continuously, all the way to the sea.

Don't you think the crowds in this city are always in a continuous flow?

This alley is not a main road, so pedestrians are not flowing ceaselessly.