n.山谷，溪谷，峡谷，谷地，深谷；流域；[建筑]屋顶排水沟，屋面斜沟； 变形： 复数：valleys 双语释义：n.(名词)[C] 谷,山谷 an area of land lying between two lines of hills or mountains, often with a river running through it[C] 流域 a region drained by a river英英释义： valley[ 'væli ]n.a long depression in the su