课题
近义词与同义词
按词义分组列出，使用时请结合具体语境。
the subject matter of a conversation or discussion; "he didn't want to discuss that subject"; "it was a very sensitive topic"; "his letters were always on the theme of love"
a question raised for consideration or solution; "our homework consisted of ten problems to solve"
基本解释
研究或讨论的主要问题或亟待解决的重大事项科研～。