principle of payment for the use of funds

例句：

1. 1. The teacher explainedthe basic principles of physics tous.
   老师向我们解释了物理学的基本原理。
2. 2. Thecompany's core business is based onits unique selling proposition.
   该公司的核心业务是基于其独特的卖点。
3. 3. The new policy will beimplemented based on the feedback from the pilotprogram.
   新政策将根据试点项目的反馈来实施。