unheard-of

音標(biāo)發(fā)音

We are developing our production at a speed unheard-of before.
我們正以前所未聞的速度發(fā)展生産。
《新英漢大辤典》
Being relatively small, the screen had a resolution of a then-unheard-of 200 pixels per inch (ppi).
一款相對(duì)較小的顯示器，它擁有一個(gè)前所未聞的每英寸200像素的顯示屏。
First, since the recession was unusually deep and the recovery unusually slow, the US is experiencing unheard-of long-term unemployment rates.
首先，由於衰退異乎尋常的嚴(yán)重，同時(shí)複囌異乎尋常的緩慢，美國(guó)正經(jīng)歷著前所未聞的長(zhǎng)期高失業(yè)率。
okread.net

And so Massad was given an unheard-of second hearing before a different committee this past year.
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