required carrier return character

例句：

1. 1.It is required that all students attend the meeting.
   所有学生都必须参加会议。
2. 2. The new policy requires us to improve our work efficiency.
   新的政策要求我们提高工作效率。
3. 3. She required her assistant to help her with the report.
   她要求她的助手帮她写报告。