摘要：The plan may well be over-ambitious, and is clearly open to discussion. (该计划可能过于雄心勃勃，显然是可以讨论。) [柯林斯高级学者辞典]

discussion是动词discuss派生出来的动作名词，含义为“讨论、商讨、论述、详述”。

如果discussion偏重“动作执行”，那么不可数，如

【例句1】The whole question of school curriculum is up for discussion. (学校课程的整个问题都有待讨论。)[柯林斯高级学者辞典]

【例句2】The plan may well be over-ambitious, and is clearly open to discussion. (该计划可能过于雄心勃勃，显然是可以讨论。) [柯林斯高级学者辞典]

【例句3】We want to encourage public discussion of mental health issues. （我们希望鼓励公众讨论心理健康问题。）[牛津高级学者辞典]

偏重“动作执行过程”更不可数，

【例句4】“The proposals are still under discussion,”she said.（她说：“这些提议仍在讨论中。”。） [柯林斯高级学者辞典]

【例句5】The matter is still under discussion (= being considered). （这件事仍在讨论中。）[剑桥高级学者辞典]

【例句6】The plans have been under discussion (= being talked about) for a year now. （这些计划已经讨论了一年了。 ）[牛津高级学者辞典]

偏重“动作所呈现的/局面状况/事实”也不可数，如

【例句7】There was a lot of discussion about the wording of the report. （关于报告的措辞有很多讨论。）[柯林斯高级学者辞典]

【例句8】There was some discussion among reviewers about this film. （评论家们对这部电影进行了一些讨论。 ）[牛津高级学者辞典]

若discussion偏重“有始有终的事件”，那么可数，如

【例句9】We had a discussion with them about the differences between Britain and the US. (就英国和美国之间的差异，我们与他们进行了一次讨论。) [牛津高级学者辞典]

【例句10】 A lively discussion followed about whether he should be allowed to join the club. （随后，人们就是否应该允许他加入俱乐部展开了热烈的讨论。 ）[牛津高级学者辞典]

【例句11】I discovered something interesting during a family discussion. （在一次家庭讨论中，我发现了一些有趣的事情。） [牛津高级学者辞典]

【例句12】Council members are due to have informal discussions later on today. （理事会成员定于今天晚些时候进行非正式讨论。）[柯林斯高级学者辞典]

【例句13】We will hold/have discussions with employee representatives about possible redundancies. （我们将与员工代表就可能的裁员进行讨论。）[剑桥高级学者辞典]

【例句14】The exhibition offers opportunities for frank discussions around sensitive issues. （展览为围绕敏感问题进行坦率讨论提供了机会。）[牛津高级学者辞典]

【例句15】The pair held informal discussions on a number of topics. （两人就一些议题进行了非正式讨论。） [牛津高级学者辞典]

如果discussion表达“动作所取得成果的版本”，那么可数，如

【例句16】For a discussion of biology and sexual politics, see chapter 4. （有关生物学和性政治的讨论，请参阅第4章。）[柯林斯高级学者辞典]

【例句17】Her article is a discussion of the methods used in research. （她的文章是对研究中使用的方法的一个讨论。） [牛津高级学者辞典]

【例句18】See chapter 15 for a detailed discussion of the approach used. （有关所用方法的详细讨论，请参阅第15章。 ）[牛津高级学者辞典]

来源：宁宁课堂