(每日一词）diatribe

Diatribe /ˈdaɪəˌtraɪb/ n. 怒斥，抨击；

meaning: an angry speech or piece of writing that severely criticizes something or someone 

1) 前缀：dia-在…之间(dialogue)

2) 词根：tribe- 摩擦（tri-三+be-存在）

e.g. He launched into a long diatribe against the lack of action in Congress. 他开始长篇大论地抨击参议院行动不力。