首先可以说明海水高低潮的变化导致悬崖底部逐渐的后退，经过长时间海水侵蚀

First, it can explain the high tide of the sea change gradually lead to the bottom of the cliff retreat after a long sea erosion has shown a fossil, as well as a large area of ​​ocean waves attack range to promote the cliff face slowly retreat. Meanwhile summarize what kind of terrain created this phenomenon.

First of all, it can be shown that the change of the high and low tide of the sea leads to the gradual retreat of the bottom of the cliff, after a long period of sea erosion presents fossils, and the large area of the wave attack area caused the cliff surface to retreat slowly. At the same time, it is summarized that what kind of terrain made this phenomenon happen.

First of all, it can be explained that the change of high and low tide of sea water causes the gradual retreat of cliff bottom. After a long time of erosion of sea water, fossils appear, and the large-scale attack range of waves causes the gradual retreat of cliff surface. At the same time, it summarizes what kind of terrain makes this phenomenon happen.