pre-rollpre-roll /ˈpriː rəʊl $ -roʊl/ noun [countable] 
technical an advertisement that is shown before a video on the Internet
technical an advertisement that is shown before a video on the Internet
| 单词 | pre-roll |
| 释义 | pre-rollpre-roll /ˈpriː rəʊl $ -roʊl/ noun [countable] technical an advertisement that is shown before a video on the Internet |
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