名词
中文翻译：通信
同义词：
['correspond', 'correspondence', "reply例句：1. They exchanged letters and responded to each other's messages.（他们交换了信件并回复了彼此的消息。）"]
例句：
-
1. They exchanged letters and responded to each other's messages.
他们交换了信件并回复了彼此的消息。
-
2.The sender sent a letter to the recipient and received a reply from the recipient.
发件人向收件人发送了一封信，并收到了收件人的回复。
-
3.She replied to the email with a brief message.
她用简短的邮件回复了。