epistolary

形容词 epistolary:

1. written in the form of or carried on by letters or correspondence
   同义词：epistolatory

e.pis.to.lar.y

adj.（形容词）
Of or associated with letters or the writing of letters.
书信的：与书信或书写书信有关的
Being in the form of a letter:
书信体的：以书信形式的：
例句：
epistolary exchanges.
书信往来

Carried on by or composed of letters:
用书信进行的，书信体的：
例句：
an epistolary friendship.
通讯友谊

来源：
From Latin epistol3ris
源自 拉丁语 epistol3ris
from epistola [epistle] * see epistle
源自 epistola [书信] *参见 epistle