picture duration

例句：

1. 1. The movie lasted for an hour and a half, which is the typical duration of a feature film.
   这部电影持续了一个小时半，这是一部电影的典型时长。
2. 2.The artist spent several months perfecting his technique, which is a common practice in the field of art.
   这位艺术家花了几个月的时间来完善他的技巧，这是艺术领域常见的做法。
3. 3. The documentary's length was carefully calculated to ensure that viewers could fully appreciate its content, which is a common goal in filmmaking.
   这部纪录片的长度经过精心计算，以确保观众能够充分欣赏其内容，这是电影制作中常见的目标。