This is the 1680th most frequent Chinese word.
一带
"Area" or "region."
In this sentence, '一带' refers to the region or vicinity along or surrounding the river.
这座城市的河流一带非常美丽。
The area along the river in this city is very beautiful.
Here, '一带' is used to describe the area surrounding the school.
学校一带有许多餐馆。
There are many restaurants near the school area.
'一带' indicates the area in and around the mountains in this context.