Cape becomes bar, and plain shoal, and valley and gorge deep water and channel.

岬角成了沙洲和浅滩，溪谷和山峡成了深水与湖峡。

youdao

This causes the dense water from the Mediterranean to flow like a river along the sea bed, carving a channel with Banks around 115 feet deep and 0.6 of a mile wide.

这使得来自地中海的密度较大的水像河流一样在海床上流淌，冲刷蚀刻出大概115英尺深0.6英里宽的水道和河岸。

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They found a river of highly salty water flowing along the deep channel at the bottom of the Black Sea, creating river banks and flood plains much like a river found on land.

来自利兹大学的科学家第一次利用机器人潜水艇去研究在海床下发现的深槽水道，结果他们发现了一条高含盐水河流流淌在这条黑海海底的深槽水道中，并制造出和陆地上的河流非常相似的河岸和漫滩。

youdao

Sediment-carrying rivers have been diverted, sea level has risen (increasing the volume of water in the lagoon), a deep-water channel has been dredged for shipping, and turbid waters are killing the eel grass that stabilises mud flats.

ECONOMIST: Flood barriers