1·When this inland sea retreated, Hamilton hypothesizes, the Amazon dolphins remained in the river basin, evolving into striking creatures.
哈密尔顿推测，当这片内陆海退去，亚马逊河豚在流域留了下来，逐渐进化为一种恐怖动物。
2·The Yangtze River basin is the main source for water in the South-North water Diversion Project.
长江流域是南水北调工程的主要水源。
3·This extremely colorful autumn reflection was captured in the Appalachian Mountains the upper Williams River basin in early October of 2008.
这张具有极其丰富多彩秋天色彩的照片是在2008年10月初于上威廉姆斯流域的阿巴拉契亚山脉拍摄的。
4·Spain's environment ministry this week pledged to pump water over from the Tagus river basin early next year.
本周，西班牙环保部门承诺，将于明年初从塔霍河流域引水。
5·On this basis, precipitation concentration period, concentration degree and the flood index in Xinjiang River basin were determined.
在此基础上确定了流域雨量集中期、集中度及信江流域洪涝指数。