a. relating to or produced by or consisting of volcanoes
s. explosively unstable
s. igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt
a. 火山的, 猛烈的
n. 火山岩
1. The volcanic eruption created a beautiful lava flow down the mountainside.
火山爆发形成了美丽的熔岩流从山坡上流下。
2. Many volcanic islands are formed by the buildup of lava over time.
许多火山岛是随着时间推移熔岩堆积而形成的。
3. Scientists study volcanic activity to predict future eruptions.
科学家研究火山活动以预测未来的喷发。