1. She decided to pursue a career in volcanology after witnessing a volcanic eruption during a field trip. 她在一次实地考察中目睹了火山爆发，决定从事火山学的职业。
2. The study of volcanology helps scientists better understand the behavior and impact of volcanoes. 火山学的研究帮助科学家更好地了解火山的行为和影响。