您要查找的是不是：
- black river valley 黑河流域
- They travelled up the river valley. 他们向河流上游地区行进。
- We flew northward to the Changjiang River Valley. 我们往北向长江流域飞。
- The botany of the Ohio River valley. 俄亥俄河谷的植物
- The river valley is intensively cropped. 河谷里种满了庄稼。
- We pitched camp in a river valley. 我们在河谷安营。
- South side is the bountiful Nile River valley land. 南面是富饶的尼罗河谷地。
- The study of flora in Yuanmou dry-hot river valley. 元谋干热河谷植物区系研究.
- A branch of the Niger-Congo language family, spoken in the upper Niger River valley. 曼丁哥语尼日尔刚果语族中的一支，尼日尔河上游河谷地区的人说此语
- In China, southern agriculture begins in the Yangtze River valley. 中国南方的农业从长江流域开始。
- A group of Indic languages spoken in the upper Indus River valley. 达尔德语在印度河上游河谷说的印度语群
- Cooperation for the development of the Mekong River valley is about to unfold. 湄公河流域开发合作即将全面展开。
- A language family widely spread throughout the Amazon River valley, coastal Brazil, and northeast South America. 图皮－瓜拉尼语族一种广泛散布于亚马孙河河谷、巴西沿岸地区和南美洲东北部的一个语族
- Where is the Red River Valley? It is on the left of the hill. 红河谷在哪里?它在那个小山的左边。
- Enlightenment on Tennessee river Valley Development in U.S.A. 美国田纳西河流域开发的启示。
- This was the worst flood in the Ohio River Valley since 1964! 这次的洪水是俄亥俄河谷自1964年以来最严重的一次泛滥。
- There is a place along River Valley Road called UE Square. 里岜?Q里路上有一个友乃德广场。
- The third factor resulted in the aggradation of main river valley. 河川的再下切则均与沈积物减少有关。
- The river valley has been dammed up to provide hydroelectric power for region. 河谷已拦起了水坝为该地区供给水电。
- A member of any of a group of South American Indian peoples living along the coast of Brazil, in the Amazon River valley, and in Paraguay. 图皮族居住在巴西，亚马孙河河谷和巴拉圭的南美洲印第安人的一个民族的成员
