valley

thung lũng, lưu vực

1. An elongated depression cast between hills or mountains, often with a river flowing through it.Vùng đất trũng kéo dài giữa các đồi hoặc núi, thường có sông chảy qua.
2. An area which drains itself into a river.Vùng đất có nước chảy dồn vào một con sông.
3. Any structure resembling one, e.g. the interior angle formed by the intersection of two sloping roof planes.

• The Indus River valley was the site of an ancient civilization.