They sang songs to keep their spirits up.

他们唱歌以保持高昂的情绪。

《牛津词典》

Though it's not easy, we should always keep our spirits up for it can give us courage to face difficulties.

虽然这并不容易，但我们应该始终保持精神振奋，因为这能够让我们有勇气面对困难。

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He wrote "Everyone's been crying, 'Keep up your spirits, and we will have a winning team bye and bye."'

他写道：“每个人都在呐喊：‘你们要振作精神！”我们迟早会成为一支胜利之队。’

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Company founder Fowler says the slogans were started a year ago as a parody of the British wartime slogan "Keep Calm and Carry On, " which was intended to encourage Britons to keep up their spirits.

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And she is happy to play their game, since it helps keep her spirits up.

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They were there every day for us, to sit with us, to keep his spirits up.

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