中央凹陷

例句：

1. 1. Thecar's engine is located in themiddle of the engine compartment.
   汽车的发动机位于发动机舱的中心。
2. 2. The table has acentral depression where the legs can rest.
   桌子有一个中央凹陷，腿可以放在上面休息。
3. 3. The mountain range is characterized by itscentral depression and steep slopes.
   山脉以其中央凹陷和陡峭的坡度而著称。