They were formed in the 1990s by diverting water from lake Nasser, an artificial lake formed behind the Aswan High Dam on the river Nile.

它们是由于1990年代从纳赛尔湖调水而形成的，是在尼罗河上的阿斯旺大坝后面形成的人工湖。

youdao

The 156-meter-high Zipingpu Dam began to fill in December 2004, and within 2 years the water level had risen to 120 meters.

高达156米的紫坪铺大坝于2004年12月份开始蓄水，两年内水位已经涨到了120米。

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Her hosts held a festive celebration, then showed her the dam, an eight-foot-high sand-and-concrete structure that traps and filters water so that it's available and drinkable year-round.

接待她的主人举行了节日庆典，然后，带她看了水坝——八英尺高的沙和混凝土结构，圈住并过滤能够全年供应的饮用水。

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He said the water was as high as four meters. Indonesian authorities say torrential rains were too much for the Dutch colonial era dam.

VOA: standard.2009.03.27

In a two-sentence letter Monday, North Korea said it had ordered the release on an "emergency" basis because water levels behind the dam had risen too high.

VOA: standard.2009.09.09

With the force of a giant waterfall, the dam burst,launching a wall of water 18 meters high down the funnel toward Johnstown faster than warnings could be sounded.

VOA: standard.2010.04.26

If it is too high, the water spills over even when the dam is up.

ECONOMIST: Babbage’s last laugh | The

Mr Turner said the council had also built a 1m high dam near the culvert, which had improved water flow through the area.

BBC: Divers used to investigate flood-hit A34 in Stone