sea walls

Now those grains are sequestered yet again& often in the very concrete sea walls that contribute to beach erosion.

现在，这些沙砾却再次受困&往往就在那些助推海滩侵蚀的混凝土防波堤里。

But once the sea walls almost put the village in great danger.

但有一次，海堤差点给这个村庄带来极大的危险。

Sea walls collapsed, and low-lying areas were flooded.

海堤溃决，海水淹没了低洼地区。

Breakwaters, sea walls and dykes are to be rebuilt, ideally stronger than before, so that they can deal with smaller tsunamis and typhoons.

防波堤、防浪墙、围堰都要重建，最好还要比之前更加坚固，以抵挡较小的海啸和台风。

If sea levels go up, do you build sea walls or rehouse people?

如果海平面上升, 是修建海堤还是重新安置居民?

the reconstruction of the sea walls

海堤的修复