discussion
词根词缀：
apprehension n. 理解；逮捕
apprehend 领会，逮捕，ap加强 + prehend 抓住 → 理解；逮捕
approbation n. 称赞；认可
approbate 称赞，ap加强 + prob 证明 + ate 做，造成，使… → 证明正确 → 称赞
concision n. 简洁
concise 简洁的，con加强 + cis 切 + e → 把多余的剪切掉 → 简洁的
dilapidation n. 破旧，荒废
dilapidate 倒塌，di分开 + lapid 石头 + ate 做，造成，使… →〔造房的〕石头一分为二 → 倒塌
discussion n. 讨论
discuss 讨论，dis分散 + cuss 摇动 → 分散敲击〔问题〕→ 讨论
inflation n. 通货膨胀
inflate 充气，in使… + flat 吹 + e → 吹气 → 充气
profusion n. 丰富；浪费
profuse 浪费的；充沛的，pro向前 + fus 流 + e → 不断向前流 → 浪费
accordion n. 手风琴
ac 加强 + cord 心 + ion 物，用品 → 抒发心声的〔琴〕→ 手风琴
carnation n. 康乃馨
carrion n. 腐肉
carr〔= carn〕+ ion 物，用品 → 腐肉
mansion n. 大厦
manse 住宅 + ion 物，用品 → 大厦
数据来源：新东方英语词汇速记大全
相关例句：
Dawkins ends his discussion with a call for liberation
道金斯以呼吁解放结束了他的论述。
The bill would be submitted for public discussion before being enacted as law.
该法案在获得通过成为法律前，将提请公众讨论。
Also up for discussion will be the conduct of free and fair elections
同样提出来进行讨论的还有如何进行自由公正的选举。
They entered into a discussion of the European question.
他们开始商讨欧洲问题。
There was a lot of discussion about the wording of the report
关于此则报道的措辞议论纷纷。
The questions he raised during the discussion were all very much to the point.
他在讨论会上提出的几个问题都十分中肯。