二、单词
1、literally 逐字地、照字面地
translate a passage literally 逐字直译一篇文章；
2、interval 间隔、距离
The interval between the two posts measures thirty meters.
那两根柱子间距30米。
3、audio 听觉的、声音的；
4、video（n） 录象，电视，录象机；（a）电视的，录象的；
5、animation 动画片；
6、segment 部分；部门；
The company dominates this segment of the market.
该公司控制了这一部分市场。
7、tableau 如画的描写，动人的场面；
8、optical 眼睛的、视力的、光学的；
9、laser 激光；
三、句型分析
Nevertheless,[when most people refer to multimedia] they generally mean the combination of two or more continuous media, (that is, media have to be played during some well-defined timed times interval, [usually with the user's interaction.])
