单词学习：efflorescence 名词
efflorescence
/ˌefləˈresns/
1. 开花，开花期；2. （艺术、文化等的）全盛期，鼎盛时期；3. （化学、建筑）风化，盐析，粉化
The efflorescence of classical music in the 18th century was a topic that Professor Gu discussed passionately in his lecture.
18世纪古典音乐的鼎盛时期是顾老师在讲座中热情讨论的一个话题。
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