feel the need of

例句：

1. 1. We feel theneed to improve our work efficiency.
   我们感觉到需要提高我们的工作效率。
2. 2. She felt the needto apologize for her mistake.
   她觉得有必要为她的失误道歉。
3. 3. The new policy wasfelt the need to be implemented immediately.
   新政策被认为有必要立即实施。