[詞典] Anser cygnoides; swan goose; letter; mail;
[例句]在開始的壹段時間裏，我們彼此鴻雁傳情，她的信件成了我那段艱苦而又漫長歲月中生命裏最精彩的部分。
For a time we corresponded, and her letters were the highlight of those grinding, endless years.