This is an ecological disaster.
因为这是一场生态灾难。
The region has been declared an ecological disaster zone.
这个地区已经宣布为生态灾难区。
The oil leak from the Exxon Valdez was an ecological disaster.
埃克森瓦尔迪兹号漏油事件是一个生态灾难。
Clearly something else has to be done in order to avoid an eventual ecological disaster.
很明显，为了避免最终出现的生态灾难，应该采取别的措施。
The essential of ecological and enviromental disaster is economic problem.
生态环境问题的实质是经济问题；
Sandstorm is a meteorological disaster, but also a serious ecological environment problem.
沙尘暴是一种气象灾害，也是严重的生态环境问题。
Sandstorm is a meteorological disaster, but also a serious ecological environment problem.
沙尘暴是一种气象灾害，也是严重的生态环境问题。
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