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
随便看	bagel bagful baggage baggage car baggage reclaim baggage room Baggie Baggins, Bilbo baggy Baghdad bag lady bagpipe bagpipes baguette bah bahahaha Baha'i Baha'i Faith Bahamas Bahasa Bahrain Baikal bail bailey Bailey, David

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