On some parts of the coast the waves beat against the rocky cliffs, but this damage is small compared with that caused by the stones and sand which the water throws against them.

在海岸的某些地方，浪击打着岩石峭壁，但是单凭水力的冲击所造成的剥蚀，同水中夹带着沙石对峭壁的剥蚀相比就显得小多了。

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Thick black waves roll up onto the beach in Beirut, splashing against sand that's been stained by a huge oil spill.

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