dust and dirt的用法和样例：
- Dust and dirt soon accumulate if a house is not clean regularly.
- Dust and dirt soon accumulate if a house is not cleaned regularly.
- Dust and dirt protecting brush bracket.
- The eyelashes protect the eyes from dust and dirt.
- Remove dust and dirt by high-pressure air before paint application.
- Dust and dirt won't damage it, arid as there's no contact between the laser and the disc, it will never wear out.