流向 (liú xiàng): direction of a current; direction of flow; to flow toward

The direction of the river's flow is from west to east.

Wind direction and the direction of ocean currents are very important for navigation.

The direction of the river flow in this city is north-south.

Research found that the direction of this underground river's flow changes with the seasons.

The direction of the pollutants' flow determines which sea area it will eventually enter.