名词

1. 广袤;辽阔;浩瀚
An expanse of something, usually sea, sky, or land, is a very large amount of it.

1. a wide scope

e.g. the sweep of the plains

Synonym: sweep

2. the extent of a 2-dimensional surface enclosed within a boundary

e.g. the area of a rectangle
it was about 500 square feet in area

Synonym: areasurface area

3. a wide and open space or area as of surface or land or sky