n.translation of the words of a foreign opera (or choral work) projected on a screen above the stage
同义词：supertitle
英汉双解大词典
surtitle/ˈsɜːtaɪtəl/(surtitles)
1.
N-COUNT（可数名词）
At an opera or play that is being performed in a foreign language, surtitles are a translation or summary of the words, which appear on a screen above the stage. (外国歌剧或戏剧的)字幕 [英国英语][usu pl]