1 (used about a job, task, etc) needing a lot of effort, care, skill, etc （指工作、任务等）费力的，需要十分仔细、高度技巧的: It will be a demanding schedule -- I have to go to six cities in six days. 旅行日程安排得非常紧凑──我要在六天内去六个城市。

2 (used about a person) always wanting attention or expecting very high standards of people （指人）时刻需要照顾的，要求高的，苛求的: Young children are very demanding. 幼儿需要悉心照顾。a demanding boss 要求严格的上司