如果强调开了一个讨论会，常为可数名词，例：
a heated discussion about sth。关于某事的热烈讨论。
表示议论，争辩时常为不可数名词。例：
The incident caused much discussion among the public. 这件事在公众中议论纷纷。
扩展资料
The discussion focused on three main problems.
讨论集中在三个主要问题上。
I tried to lead the discussion back to the main issue.
我试图把讨论引回到主要问题上。
There was discussion about the fire and its likely cause.
对那场火灾及其可能的.起因进行了讨论。
They finally settled down to a discussion of the main issues.
他们终于开始讨论一些主要问题了。
The article served as a useful starting point for our discussion.
这篇文章成了我们展开讨论的良好起点。
