n. a piece of information about circumstances that exist or events that have occurred
n. a statement or assertion of verified information about something that is the case or has happened
n. an event known to have happened or something known to have existed
n. a concept whose truth can be proved
n. 事实, 真实性, 真相, 细节, 论据
1. The fact is that we need to study harder for the exam.
事实是我们需要更加努力地学习以应对考试。
2. It's a fact that the Earth revolves around the Sun.
这是一个事实，地球围绕太阳旋转。
3. She stated a fact about climate change during the discussion.
她在讨论中陈述了一个关于气候变化的事实。