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  3. [audioFiles]2017m5s/audio_ezfj_172_201705[/audioFiles] Earthquakes An ea

[audioFiles]2017m5s/audio_ezfj_172_201705[/audioFiles] Earthquakes An ea

游客2024-09-14  40
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答案     Earthquakes
    An earthquake is the result of a sudden release of energy in the Earth’s crust. / It starts when two plates move around each other. / Energy is being stored when the plates press and stretch against each other. / When released suddenly, the energy will break and shake the rock around the plates. / At the Earth’s surface, earthquakes manifest themselves / by shaking or displacement of the ground. / When the centre point of a large earthquake is located offshore, / the sea bed may be displaced sufficiently to cause a tidal wave. / Earthquakes can also trigger land slides and eruptions of volcanoes. /
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