我对美国历史的介绍主要依靠亨利·斯蒂尔·柯梅杰，幸好我随身带着他的著作。

My presentations on American history drew heavily on Henry Steele Commager, whose book I fortunately had taken with me.

youdao

他们的专辑将达到多个白金的销量，这是前所未闻的……那种成功应该是属于席琳·迪翁、蒂娜·特纳和菲尔·柯林斯那样的歌星的，那是，闻所未闻的。

And their records were going multi-platinum, no one had heard of this before... that was the 10 domain of Celine Dion and 11 Tina Turner and Phil Collins, it was, like, unheard of.

youdao