volcanologist

She studied rocks for years and finally became a volcanologist.

她研究岩石多年，最终成为了一名火山学家。

用法提示：名词 volcanologist 在句中作表语，表示她从事火山研究的职业身份。

The volcanologists set up their equipment near the crater to record the tremors.

火山学家们在火山口附近架设设备，以记录震动。

用法提示：名词复数 volcanologists 作主语，指一群从事火山研究的人。

As a volcanologist, he often travels to remote islands to study active volcanoes.

作为一名火山学家，他经常前往偏远的岛屿研究活火山。

用法提示：名词 volcanologist 与 as 连用，说明他的职业身份是火山学家。