| 例句 |
They have found extinct undersea volcanoes.他们发现了海底死火山。Extinct volcanoes are those that have not erupted in historic times.死火山指有史以来没有喷发过的火山。On the horizon he could make out the hazy outline of one of the country's extinct volcanoes.地平线上，他只能依稀看出该国一座死火山的轮廓。The area is near inactive volcanoes.这个地区靠近处于休眠状态的火山。Books on Scottish history were mixed up with books on volcanoes.有关苏格兰历史的书籍和有关火山的书籍混在一起了。Most volcanoes on this island are still active but a few are inactive.这座岛上的大多数火山仍然是活火山，少数是休眠火山。There are many active or dormant volcanoes along the fault lines.这几条断层线沿线地带有许多活火山和休眠火山。Some volcanoes have eruptive cycles followed by stretches of dormancy.有些火山在喷发周期之后有持续的静止时期。 |