private study

例句：

1. 1. This private club is only for members of the aristocracy.
   这个私人俱乐部只对贵族开放。
2. 2. The private investigator was hired to find out who stole the valuable paintings.
   雇佣了一名私家侦探来找出谁偷走了这些珍贵的画作。
3. 3. The private school offers a unique education that is not available in public schools.
   这所私立学校提供一种独特的教育，这是公立学校所没有的。