extinct volcano

An extinct volcano has ceased to be able to explode.

死火山已失去爆发能力.

——期刊摘选

The extinct volcano's eruption would mean a cataclysm for the city.

死火山又重新喷发,对这座城市来说意味着大难临头.

《简明英汉词典》

I picnic by an extinct volcano every week.

我每周在一座死火山旁野餐.

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And he used the extinct volcano as a footstool.

而且,他还把那座死火山当作脚凳.

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Standing on a volcanic crater , even that of an extinct volcano, is very dangerous.

别看是死火山, 站在火山口也是很危险的.

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