大修

例句：

1. 1. The car's engine is not working properly;we need to have it majorly repaired.
   这辆车的引擎出了问题，我们需要进行大规模修理。
2. 2. The old house needs a major repair before it can be used again.
   这所老房子需要大规模修理才能再次使用。
3. 3. The roof of the house needs major repair due to the age and weathering.
   由于房屋的年龄和风化，屋顶需要进行大规模修理。