monographer

例句：

1. 1. The monographer spent hours researching the history of the town.
   编年史作者花了数小时研究该镇的历史。
2. 2. The doctor's monographer is a detailed report on the patient's condition.
   医生的编年史员是一份关于病人状况的详细报告。
3. 3. The monographer carefully documented all the details of the event.
   编年史员仔细记录了事件的所有细节。