| 单词 | preroll |
| 释义 | prerollverb (priːˈrəʊl) (transitive) 1. to roll in advance noun (ˈpriːˌrəʊl) 2. informal a cannabis cigarette that has been prepared before being sold 3. a short video, usually an advertisement, that appears at the start of a longer video Compare midroll, postroll |
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