中凹的

例句：

1. 1.The car's hood is deeply recessed into the engine compartment.
   这辆车的车头深深地凹陷在引擎舱里。
2. 2.The flower petals are deeply recessed, creating a beautiful contrast.
   花瓣深深凹陷，形成了美丽的对比。
3. 3. The table was deeply recessed, providing ample space for conversation.
   桌子深深地凹陷，为交谈提供了充足的空间。