aifayewong
可以说：due time 时间节点The list can also be sorted by priority, start date, and due time. 还可以按优先级、启动日期和到期时间对该列表排序。 Can all the content be finished in the due time? 教材中的所有内容能否在规定时间内完成？
天凄微凉
时间段：一段时间.如2 days,1 month,3 years,an hour等时间点：具体的某个时间.10 o'clock,on wednesday,last year,yesterday等表示时间段的组合：since+时间点.如：I have been a student since last year.for+时间段.如：I have been in the house for 7 days.
陈英杰哥哥
“时间点”是相对于“时间段”而言的. 时间点是表示某一瞬间的具体时间,如9点.英文为at nine o'clock等 时间段是从一个时间点到另一个时间点,如3点到5点这段时间或1天,1个星期等.如in spring 在春天；in 2014 在2014年等
真水岂无香
(adv.) in extremis ex: Besides diplomacy, we may use deterrence to maintain peace of our nation in extremis.(adj.) critical ex: At this critical stage of conciliating between two countries in clash.
