dateline的意思？

dateline的音标：dateline的英式发音音标为：['deɪtlaɪn]dateline的美式发音音标为：['deɪtˌlaɪn]...

Then I saw the dateline -- 1924. The letter had been written almost sixty years earlier.信的落款日期是1924年, 差不多写于60年前.The stories of newsmen on the scene have been wrapped up under a Paris dateline.在现场的记者们的报导已经综合成一篇发自巴黎的电讯....