- [usually singular] crest (of something)
the top part of a hill or wave 山顶；顶峰；波峰；浪尖 
surfers riding the crest of the wave 正在浪峰上冲浪的运动员
Extra ExamplesTopics Geographyc2We finally reached the crest of the ridge. 我们终于到达了山脉的最高峰。 We stood on the crest of the hill. 我们站在山顶上。
Oxford Collocations Dictionaryverb + crest- reach
- on a/the crest
- ride the crest of something
a design used as the symbol of a particular family, organization, etc., especially one that has a long history （尤指象征历史悠久的家族、机构等的）饰章，纹章 the university crest 大学的徽章 The family crest consists of a crown and an eight-pointed star. 这个家族的饰章由皇冠和八角星组成。
a group of feathers that stand up on top of a bird’s head 鸟冠；羽冠 
The male is recognizable by its yellow crest. 雄性的黄色羽冠很容易辨认。
Word OriginMiddle English: from Old French creste, from Latin crista ‘tuft, plume’.
Idioms
the crest of a/the wave
a situation in which somebody is very successful, happy, etc. 顶峰时期；极其成功；春风得意 They’ve been on the crest of the wave ever since their election victory. 自从选举获胜后，他们一直处于巅峰状态。 She is on the crest of a wave at the moment following her Olympic success. 她在奥运会上获得成功，目前处于人生的巅峰 。 They are riding the crest of the wave at the moment. 他们目前处于鼎盛时期。
ride the crest of something
to enjoy great success or support because of a particular situation or event （因某种情况）处于鼎盛时期