名词
中文翻译：信函
同义词：
['letter', 'missive', 'missive', 'missive例句：1. He wrote a long letter to his friend about their upcoming vacation.（他给朋友写了一封长信，谈论他们的即将到来的假期。）']
例句：
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1. He wrote a long letter to his friend about their upcoming vacation.
他给朋友写了一封长信，谈论他们的即将到来的假期。
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2.The epistle was written in Latin, which is difficult for non-native speakers to read.
这封信是用拉丁文写的，对非母语者来说很难阅读。
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3.Epistles are often used in literature to convey complex ideas or emotions.
书信在文学中常用来传达复杂的思想或情感。