date·line /ˈdetˌlaɪn/
  日期變更線,日界線,日期欄
  dateline
       n 1: an imaginary line on the surface of the earth following
            (approximately) the 180th meridian [syn: date line, International
            Date Line]
       2: a line at the beginning of a news article giving the date
          and place of origin of the news dispatch
       v : mark with a date and place; "dateline a newspaper article"
           [syn: datemark, date-mark]