PREP
自始至终;从头到尾;贯穿
If you say that something happens throughout a particular period of time, you mean that it happens during the whole of that period.
例句
The national tragedy of rival groups killing each other continued throughout 1990...
敌对派别相互残杀的国家悲剧 1990 年全年都在上演。
Movie music can be made memorable because its themes are repeated throughout the film.
电影音乐要想让人记住不难，因为它的主旋律贯穿影片始终。