a. requiring more than usually expected or thought due; especially great patience and effort and skill
a. 要求高的, 费力的
1. This job is very demanding and requires a lot of hard work.
这份工作非常苛刻，需要付出很多努力。
2. She has a demanding schedule that keeps her busy all week.
她的日程安排很紧张，整周都很忙。
3. The teacher is known for being demanding, but she helps her students succeed.
这位老师以严格著称，但她帮助学生取得成功。