[求助] 什么意思？

★ 153-158: Meteorology
First of all, let’s look at why the temperatures tend to be higher in the city than the rural areas. This happens because almost 50 percent of the urban areas are comprised of hard surfaces like paved streets, parking lots, buildings and rooftops. As the result, any amount of rainfall is quickly repelled by this service and carried away by storm drains and gutters. Especially water just doesn’t have the chance to stand around until evaporate and during the process of the evaporation that heat is removed from the air.

不理解红字的意思，谢谢请教了。