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- 火山口火山爆发而形成的环形山或大山核心部分的崩塌而形成的环形山
A large crater formed by volcanic explosion or by collapse of a volcanic cone.
- 小火山口一种底部平坦、大致呈圆形的火山爆发后形成的盛满水的低洼地
A flat-bottomed, roughly circular volcanic crater of explosive origin that is often filled with water.
- 火焰从火山口猛烈地喷出来。
Flames blazed out from the crater of the volcano.
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