1． volcano n. pl. volcanoes
an active volcano活火山
an extinct volcano死火山
a dormant volcano休眠火山
volcanology 火山学
volcanologist火山学家
pianist
physicist
novelist
2. erupt vi
1)（火山）爆发，喷发
Mount Vesuvius hasn’t erupted for a good many years.
维苏威火山……。
2)（搏斗，暴力事件，噪音等）突然发生，爆发
Violence in street can erupt for no apparent reason.
……在没有明显原因的情况下……。
erupt into laughter / shouting / crying, etc.
突然大笑/叫喊/大哭
