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	HP hp HP sauce HQ hr HRH HRT HSE ht. HTML http HUAC hub Hubbard, L Ron Hubble Space Telescope hubbub hubby hubcap hubris huckleberry Huckleberry Finn huckster hucksterism HUD huddle

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