He was walking along the coastline.

The erosion of the coastline is progressing.

Please follow this line.

He voluntarily took on the job.

We will contact you as soon as we confirm the progress of the construction.

We should go forward.

We went to the coast with our family on the weekend.

The coastline has changed shape due to years of erosion.

The coastline is gradually changing its shape due to the erosion by waves.

This metal is undergoing corrosion.