Careful excavation and documentation of layers in a mound can reveal a wealth of information about the everyday life of a people in a settlement over many periods of occupation.
So sediment is transported and then deposited and it forms layers on the Earth's surface over time.
所以沉积物被运输,然后沉积,随着时间的推移,它在地球表面形成了层。
3
Sometimes original art works appear questionable or inauthentic because they've had so many restorers add touch-up layers to cover up damage, damage from the paint having deteriorated over time.