地球上总共有大约一万个这样的火山，其中只有几百个是死火山。
Altogether there are some ten thousand of these volcanoes on Earth, all but a few hundred of them extinct.
还有的是死火山山顶的湖泊，白色的山峰映着象月球表面一样的熔岩地貌。
A lake inside a dead volcano, white mountain peaks, lava fields that looked like the face of the moon.
许多其他火山是死火山，当前未见爆发的迹象，但也可能在未来某一刻再活跃起来。
Many other volcanoes are dormant, showing no current signs of exploding but likely to become active at some point in the future.
应用推荐