n. a unifying idea that is a recurrent element in literary or artistic work
n. (music) melodic subject of a musical composition
v. provide with a particular theme or motive
n. 主题, 话题, 题目
1. The theme of the movie is about friendship and loyalty.
这部电影的主题是关于友谊和忠诚。
2. We discussed the main theme of the book in our class.
我们在课堂上讨论了这本书的主要主题。
3. The party had a tropical theme with colorful decorations.
这个派对有一个热带主题，装饰非常丰富多彩。