单语范例（未经PONS编辑处理）
She knows it doesn't make her the best candidate to be a star lawyer, but she remains upbeat and firm in her beliefs.
en.wikipedia.org The upbeat song expresses the desire to break out from a mundane relationship and go on vacations around the world as a couple.
en.wikipedia.org Later tracks ranged in mood from upbeat and playful to somber and teary.
en.wikipedia.org He started off on an upbeat note, but slowed things down on a set of mostly original material featuring pleasant guitar playing and upbeat melodies.
en.wikipedia.org The song is an upbeat house tune espousing the pleasures of dancing.
en.wikipedia.org