a short performance that is put on before a more important one (正剧演出前的)开场小戏 Synonyms and related words
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a.
an event, especially a sports match, that happens before a more important one, or an event that is the first in a series (事件的)序曲,引子;(尤指一系列体育比赛的)揭幕赛,揭幕战 Synonyms and related words