duration of heat

例句：

1. 1.The project will last for six months.
   这个项目将持续六个月。
2. 2.The journey took us three days to complete.
   这次旅行用了三天时间完成。
3. 3.The movie had a duration of two hours and forty minutes.
   这部电影时长两个小时四十分钟。