Others point out that decreased sediment loads will likely lead to erosion of downstream riverbanks and the Mekong Delta.
其他人指出，泥沙负荷的减少可能会导致下游河岸和湄公河三角洲的侵蚀。
2
Water lilies, Okavango Delta, Botswana. "One of the greatest challenges in photography to me is to define a personal point of view.
摄影过程中我所遇到的最大的挑战之一就是对自己的观点做一个定位。
3
Well, the change in f is the value of f at the upper point here, which is x0+delta x, and minus its value at the lower point P, which is f of x0, divided by delta x.