private call library

例句：

1. 1.This is a private meeting between the CEO and the board of directors.
   这是首席执行官与董事会之间的一次私密会议。
2. 2.The private sector contributes significantly to the economy.
   私营部门对经济贡献显著。
3. 3. Private schools offer a more personalized education experience.
   私立学校提供更个性化的教育体验。