We have been in correspondence for months.

我们通信几个月了。

《牛津词典》

She was in correspondence with my family.

她与我们家保持通信联系。

youdao

I have been in correspondence with her for years.

我多年来一直同她有通信联系。

youdao

The guiding thread of the book is the correspondence, and we will look at this in some length and you will discuss it in your sections, no doubt.

本书的导引线索是,当中的相似之处，我们会读到相当篇幅,你们也会毫无疑问地在之后进行讨论。

耶鲁公开课 - 政治哲学导论课程节选

I also want to give another layer to this understanding of O'Connor as a religious writer by looking at what she said in her correspondence to one of her readers who asked her some questions, and this is on the handout that I passed around.

我还想给大家另一层,理解这位宗教作家的方式,那就是去看她,回复一位读者问题的信件，这在我发给大家的材料上有。

耶鲁公开课 - 1945年后的美国小说课程节选

I think it's in part that, suffering from lupus, she was very much confined to her house in Georgia, and the letter writing, this kind of correspondence, was certainly a way for her to keep in contact with the world of readers and other writers and friends.

我想这多少与她，受病痛的折磨有关，受制于病情，她只能呆在,乔治亚州的家里，足不出户，所以写信，必然是她和读者、,其他作家和朋友联系的方式。

耶鲁公开课 - 1945年后的美国小说课程节选

In correspondence to the Seville strategy, all clusters have core area, buffer zone and transition zone.

UNESCO: Natural Sciences

The duke is said to have brought in correspondence and paperwork to occupy himself during the hospital visit.

BBC: Third night in hospital for duke

In correspondence, the new science passed back and forth through Europe, almost as fluidly as it does in the e-mail era.

NEWYORKER: Moon Man