1. Basalt is the commonest volcanic rock. 玄武岩是最普通的火山岩。
2. Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear tests. 较小的地震也会由火山活动、山崩、煤矿瓦斯爆炸和核试验引起。
3. Iceland is peculiarly volcanic because it is formed by the intersection of a hotspot and a mid-ocean ridge. 冰岛尤其是由火山构成的,因为它是由一个热点和一个海中间的脊的交点形成的。
英英解释
adj.
1. relating to or produced by or consisting of volcanoes
2. explosively unstable
3. igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesit