n. a treatise advancing a new point of view resulting from research; usually a requirement for an advanced academic degree
n. 论文
1. She spent a year writing her dissertation on climate change.
她花了一年时间撰写关于气候变化的论文。
2. The professor reviewed my dissertation and gave me valuable feedback.
教授审阅了我的论文，并给了我有价值的反馈。
3. Completing a dissertation is a requirement for earning a doctoral degree.
完成论文是获得博士学位的要求。