### Chinese: 模块为中空结构，组合砌筑后纵向孔孔相通，横向孔孔相贯，孔芯浇注后，形成现浇混凝土网状结构，起到了二次补强和防水作用。
### English: The modules are hollow in structure. After the composite building is completed, longitudinal and horizontal holes are connected. After placing the cores, a cast-in-place concrete mesh structure is formed, which acts as a secondary reinforcement and waterproofing.
### Errors: There is a major error of incorrect translation does not accurately represent the correct translation at "composite building instead of composite structure". There is a major error of incorrect translation is missing content from the correct translation at "longitudinal and horizontal holes instead of vertical and horizontal holes". There is a major error of incorrect translation includes information not present in the correct translation at "placing the cores instead of pouring the cores".

### Improved English: The modules are of hollow structure, with connected holes vertically and interpenetrated horizontally; the cast-in-place concrete mesh structure is formed after pouring of the cores of holes, playing the role of secondary reinforcement and waterproof.