释义 |
🔑uponup·on /əˈpɑn / preposition (formal) on依据;根据;就在…之后◆a story based upon real events基于真实事件的小说◆The singer was surrounded by reporters upon arrival at the airport.那位歌手一到机场就被记者包围了。●once upon a time(used at the beginning of a children's story) a long time ago; in the past(用于童话故事的开头)很久以前,从前◆Once upon a time, there was a beautiful princess…很久很久以前,有一个美丽的公主… |