普卢塔克的《希腊罗马名人传》对研究古代历史很有帮助。

___Plutarch's 'Parallel Lives' is very helpful for studying ancient history.

这位历史学家写了一本普鲁塔克式的作品，平行对比了两位科学家的生平。

The historian wrote a ___Plutarch-style work comparing the lives of two scientists in parallel.