前所未有的的英文怎么说

英语自学网

前所未有的的英文：
unheardof
参考例句：

Crime and lawlessness are rampant as never before in our history.
犯罪和违法行为之猖獗是我国历史上前所未有的。

The rate of growth was unprecedented.
这个成长率是前所未有的。

The pace of agricultural growth since the reforms began has been unprecedented.
改革以来的农业增长速度是前所未有的。

Unprecedented levels of unemployment
失业率达到的前所未有的严重程度

On the one hand, this gives us an unprecedented opportunity.
一方面，这给了我们一次前所未有的机会。

The flood had been caused by unprecedented rainfall.
洪水是由于前所未有的大量降雨造成的。

Our school faced unprecedented difficulties.
我们学校碰到了前所未有的困难。

Economic globalization has provided mankind with unprecedented opportunities for development.
经济全球化使人类获得了前所未有的发展机遇。

the extent of culture impact which the teachers fall under is more exquisite than ever before.  
教师受到的文化冲击之剧烈程度是前所未有的。

The business is conducted on a scale of unprecedented immensity.
这项业务是按前所未有的巨大规模来经营的。unheardof是什么意思：
前所未有的