[mass noun]the action or process of talking about something, typically in order to reach a decision or to exchange ideas 讨论 defence is the subject of considerable discussion in western Europe. 防御是在西欧进行了大量讨论的一个话题。 the EC directive is currently under discussion. 欧共体的指令目前正在讨论中。 ■[count noun]a conversation or debate about a certain topic 谈话;辩论 discussions about environmental improvement programmes. 关于改善环境计划的谈话。 ■[count noun]a detailed treatment of a particular topic in speech or writing 详述
语源
Middle English (denoting judicial examination): via Old French from late Latin discussio(n-), from discutere 'investigate' (see discuss)