OG12-6中的repair和什么对应啊，望大家指导

gogo3

6.In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to vistors for cleaning and repair because moisture exhaled by tourists had raised the humidity within them to such level that salt from the stone was crystallizing and fungus was growing on the walls.

zhugewenzuo

和cleanning啊 repair 也有名词