an area of land lying between two lines of hills or mountains, often with a river running through it
a region drained by a river
The valley of Kingsclere..is about five miles long and two in breadth.
出自： C. Lyell
Rivers by themselves cut deep V-shaped valleys in a mountainous topography.
出自： F. Hoyle
The other valley people..go to Rochester..looking for any kind of work.