发布于：2025-07-06 05:30浏览量：62文/优校网
1.山谷; 溪谷; 峡谷; 谷地; 深谷
2.流域
3.【建筑】屋顶排水沟; 屋面斜沟
1.a low area of land between mountains or hills, usually with a river flowing through it
2.a large area of low-lying land around a river and its tributaries
3.the angle formed where two slopes of a roof meet