An extinct volcano can no longer erupt.

一个灭绝的火山已不能再爆发。

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I picnic by an extinct volcano every week.

我每周在一座死火山旁野餐。

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An extinct volcano has ceased to be able to explode.

死火山已失去爆发能力。

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Geologists believe the island is a "plug" left behind from an extinct volcano.

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Saridal was established 45 years ago by semi-nomadic tribesmen on the edge of Karacadag, an extinct volcano east of Diyarbakir.

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That's where Denbury owns the Jackson Dome, an extinct volcano that contains the biggest source of naturally occurring carbon dioxide on the Gulf Coast.

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