Here are two simple ways to say the sentence:
- Option 1: A sprinkler truck sprays water on trees and water play areas, and wets the road to keep dust down.
- Option 2: A water truck waters trees and splash pads, and sprays streets so dust does not blow around.
Short step-by-step explanation for an 8-year-old:
- The truck carries a big tank full of water.
- It sprays water on trees and places where kids play with water so they stay wet and healthy.
- It also sprays the roads so dust stays on the ground and does not get in people’s faces or the air.