古印度河文明是如何消亡的？
也许是因为最初的地面在水平面以下，我们已没法挖掘埋藏在地下的印度河文明城市的最初踪迹。
All trace of properly laid-out burial grounds is lacking, probably because the earliest strata are below water level and it has so far been impossible to excavate them.
印度河文明早期文字的正式书写体系也在此时诞生，从陶器碎片上和图章在黏土上盖出的印记里，都可以证明。
A formal writing system, known as the Early Indus script, emerged in this phase, as evinced by its appearance on numerous pottery fragments and in impressions that a seal, or stamp, made in clay.
印度河、神话萨拉丝瓦蒂河、恒河、哥达瓦里河和当地其它河流孕育了伟大的文明。
Great civilizations developed on the Banks of the Indus, the mythical Saraswati, the Ganges, the Godavari and other rivers of the region.
亚洲有着悠久的历史文化，黄河流域、印度河流域、幼发拉底河和底格里斯河流域是著名的人类文明发源地。
It has a time-honored history and culture. The valleys of the Yellow River, the Indus River, the Euphrates and the Tigris are known as cradles of human civilization.
印度河流域文明看来是因为自然灾害，使得印度河改变了河道而倒塌。
The Indus Valley civilization appears to have collapsed because natural disaster altered the course of the Indus River.
中国的黄河和长江流域，以及印度河和恒河流域曾孕育出人类的灿烂文明。
Both the Yellow and Yangtze River Valleys in China, and the Indus and Ganges River Valleys were once the cradles of human civilisations.
中国的黄河和长江流域，以及印度河和恒河流域曾孕育出人类的灿烂文明。
Both the Yellow and Yangtze River Valleys in China, and the Indus and Ganges River Valleys were once the cradles of human civilisations.
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