intermalar

例句：

1. 1.The engineer was able to fix the internal combustion engine without any problems.
   这位工程师能够毫不费力地修理内燃机。
2. 2.The company's headquarters are located in the heart of the city, providing a great deal of internal resources.
   公司的总部位于市中心，提供了丰富的内部资源。
3. 3.The team worked diligently to improve the internal operations and efficiency.
   团队努力工作，以提高内部运营和效率。