【单词社交网络】S1-14 《中国文明》
请听写全文。http://t1.g.hjfile.cn/listen/201301/201301130320397819543.mp3To build the dam, thousands of people must have been mobilized. It must have stretched over 2.5 kilometers, and it must have risen tens of meters high. The compressed earth dam wall created a lake whose waters irrigated the whole plain.为了建造这座水坝，上千人被动用。水坝当时一定超过2.5公里那么宽，高几十米。压实的土坝围出一条湖，湖水灌溉了整个平原。
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