have need to do sth.

例句：

1. 1. I have a lot of work to do before the exam.
   我有很多考试前的工作要做。
2. 2. She has a need to travel around the world.
   她有旅行世界的需求。
3. 3. We have a need to improve our skills in this field.
   我们有必要提高我们在这个行业的技能。