dissertate是什么意思

v.论述,讲演,写论文

1. She was invited to dissertate on the topic of sustainable development at the conference.
她受邀在会议上发表关于可持续发展的演讲。

2. The professor spent years dissertating on the effects of climate change on biodiversity.
教授花了多年时间写论文，探讨气候变化对生物多样性的影响。

发表演讲；写（论文）；谈论（某一主题）。