I never heard of it before.

我以前从来没听说过。

youdao

"I thought it was the dishwasher," she said, before she heard of the change in formulas.

“我开始以为那是因为洗碗机的原因，”在她听说了配方改变的消息之前。

youdao

It was something I never heard of before.

这是我从来没有听说过的东西。

youdao

And now "Get Crunk," as I was aware from having heard it before, involves the consistent refrain of "Get crunk" Extremely bad word, "Get crunk" Extremely bad word, and so I said "No."

我之前在听"玩旷课乐吧"时就发现,这首歌的副歌部分包含了,连续的不和谐歌词,因此我说"不行"

耶鲁公开课 - 心理学导论课程节选

Two weeks after the scan I got stomach pains - it was labour but I didn't realise it - I went to the hospital thinking I just had a really bad stomach ache - the last thing I expected was to go into full labour - I didn't know you could go into labour at 24 weeks - I'd never heard of it before.

BBC: NEWS | UK | Losing a baby: Your experiences

No one at Karakol was sure when the next Pakistan-bound bus was due, but in the stillness of this place I heard it long before it appeared: a distant whine among silent mountains.

BBC: Following the Silk Road to the end of China

While the source is questionable (I had never visited, much less heard of it before today) and the timing odd (would NBC really can Leno without an end date?), the news would come as little surprise if it proved true.

FORBES: Is NBC Really Pulling The Plug On Leno?