serial high-density recording

例句：

1. 1.The serial killer was responsible for many murders over the years.
   这个连环杀手多年来犯下了许多谋杀案。
2. 2.We have a series of meetings scheduled for this week.
   我们本周有一系列会议安排。
3. 3. The movie is based on a serial novel that has been adapted into several films.
   这部电影是根据一部连续小说改编的，已经被改编成了几部电影。