This has never been heard of before.

以前从未听说过这种事。

youdao

Yes: I remember her hero had run off, and never been heard of for three years; and the heroine was married.

是的，我记得她的男主角跑掉了，而且三年杳无音讯；而女主角结婚了。

youdao

To sing, just like you never been heard!

去歌唱吧，象没有人倾听那样！

youdao

Because we have been living in this country,and we have never made our voice heard at the national level.

VOA: standard.2009.11.27

That gave them boldness that gave them an incredible spirit to go out and talk about something that had never been heard of, never been preached of before, all across the known world.

CENTERFORSECURITYPOLICY: Keeping "the flame" burning

Every other character on the show who has left Don Draper's ad agency has either never been heard from again, or revisited in a one-off episode and then rarely to never heard from again.

CNN: Matthew Weiner reveals Peggy's fate on 'Mad Men'

Her body has never been found, the jury heard.

BBC: London