英语语法分析

They reported that clouds are an important and heretofore uninvestigated contributor to the climate.

他们报告说，云是影响气候的一个重要因素，但迄今尚未进行过调查研究。

《柯林斯英汉双解大词典》

Heretofore that information has been passed from one living thing to another.

从前，这种信息只是从一个生命体传给另一个。

Now the business we have, heretofore, you can speak with my aforementioned attorney.

迄今为止我们做的交易你可以和我前面提到的律师谈。