1. 论述：dissepiment 隔膜 | dissertate 论述 | dissertation 论文

2. 正式谈论：dissertate 正式谈论 | disservice 不亲切的行为 | dissever 割裂

3. dissertate的近义词

3. 讨论/正式谈论：dissert /论/论述/ | dissertate /讨论/正式谈论/ | dissertation /论文/

1. talk at length and formally about a topic

    e.g. The speaker dissertated about the social politics in 18th century England

    Synonym: hold forthdiscourse