that has never been known or done; very unusual 前所未闻的;空前的;很反常的 He'd dyed his hair, which was almost unheard-of in the 1960s. 他染了头发,这在 20 世纪 60 年代是罕见的事。 It is almost unheard-of for a new band to be offered such a deal. 一支新乐队得到这样的一份合同,几乎是空前的。 At that time, it was completely unheard-of for girls to go to university. 在那个时候,女孩子上大学绝对是前所未闻的。 He was sentenced to a hitherto unheard-of seven life terms in prison. 他被判处 7 次终身监禁,该量刑迄今为止绝无仅有。
Oxford Collocations Dictionaryverbs- be
- absolutely
- completely
- quite
- …