1、If you do register, which is free, the maximum duration is extended to 15 minutes.
如果你做的注冊，這是免費的，最長期限延長至15分鐘。

2、Maximum duration for a handset shorts may not exceed 5 minutes.
手機短片時長不得超過5分鐘。

3、The maximum duration of each insured trip is 90 days.
每次旅行的保障期限最長為90天。

maximum duration翻譯