The Stung Sen River is like a big, long line of water that flows through Cambodia. It's kind of like a big, twisting snake that starts in one place and ends in another.
The river is important to the people who live nearby because they use the water for lots of things. They might use it to wash their clothes or to drink, or even to grow crops like rice and vegetables.
But sometimes, the Stung Sen River can be a little bit scary. When it rains really hard, the river might start to get too full and overflow its banks. This means that the water starts to go out of the river and into other areas nearby, like people's homes and farms.
When this happens, it can be very dangerous for the people who live nearby. They might have to leave their homes and go somewhere else until the water goes down. But even after the water recedes, it can leave behind a big mess of mud and debris.
That's why it's important for people who live near the Stung Sen River to be aware of when it might flood and to take precautions to make sure they stay safe. They might build big walls or barriers to keep the water from coming in or move to higher ground until the danger has passed.