每日商务英语 第514期:预告

adumbrate--------预告

英文释义
(transitive verb) To announce in advance; to preview.

例句
The overture to the famous opera adumbrates the themes of many great songs appearing in later acts.
这出著名歌剧的序曲预告了随后几幕中出现的很多精彩歌曲的主题。