adj.书信的，用书信表达的，书信体的

She composed an epistolary novel, telling the story through a series of letters between the characters.
她创作了一部书信体小说，通过角色之间的信件讲述故事。
Their correspondence was entirely epistolary, as they lived far apart and had no other means of communication.
他们的通信完全是书信形式，因为他们相隔甚远，没有其他联系方式。
The author decided to use an epistolary style for the memoirs, giving readers a glimpse into his inner thoughts and feelings.
作者在自传中选择了书信体，让读者能窥见他的内心世界和情感。
In her novel, the main character writes letters to her diary, making the narrative an epistolary one.
在她的小说中，主角向日记写信，使得整个叙述成为书信体。
As part of their research, the historians discovered a trove of forgotten epistolary documents from the early 1900s.
史学家们在研究中发现了大量19世纪初被遗忘的书信资料。
The epistolary form allowed the playwright to explore the characters' thoughts and conflicts in intimate detail.
书信体的形式使剧作家能够深入细致地探讨角色的思想和冲突。
Her novel, told through alternating epistolary chapters, provides a unique perspective on the war.
她的小说通过交替的书信章节展现了战争的独特视角。
After the accident, they exchanged daily epistolary updates on their recovery progress.
事故发生后，他们每天都会通过书信交流康复情况的进展。
The epistolary format of the book creates a sense of immediacy and intimacy with the characters.
这本书的书信形式让人感觉与角色的距离近，仿佛身临其境。
The detective story unfolds through a series of anonymous epistolary clues, keeping the reader guessing until the end.
推理小说通过一系列匿名书信线索展开，让读者一直猜到最后。