1. The peacock is a precious bird in the sub-tropical zone.
   孔雀是亚热带地区的珍禽
2. Sub-heading: Secondary level of heading on a printed piece.
   副标题:印刷品上的第二层次标题。
3. Cross-head: A sub-heading ranged centrally over a column.
   通栏标题:放在一栏中间的小标题。
4. Liverpool brought on their sub at half-time.
   利物浦队在中场休息后让候补队员上场比赛。
5. The sub can outrun any destroyer.
   这艘潜水艇比任何驱逐舰航行得都快。

　1个名词解释