Premonitions of future undreamt-of happiness made her heart beat.

预感到未来从未有过的幸福，她的心怦怦直跳。

youdao

Perhaps if we listen carefully enough to the songs that Piglet and her Cousins sing at night to the moon, we may yet learn about emotions that could bring us a new and utterly undreamt-of delight.

如果我们细心聆听珮莉和她的姐妹们在晚上献给月亮的歌曲，我们或许可以了解她们的情感世界，那会带给我们全新的、意想不到的喜悦。

youdao

Something undreamt of was lurking everywhere and the uppermost question every day was: when, Oh! When would we come across it?

我感到每一个地方都隐藏着这种神秘。每天，我心里产生的最大问题是：什么时候，啊！

youdao

Fax machines, let alone computers, are still undreamt-of luxuries for most.

ECONOMIST: Old Bolivian customs

The two-party system was undreamt of by the founders of the Republic.

FORBES