It flows down the sea shelf and out into the abyssal plain much like a river on land.
和陆地上的河流非常相似，它从海底大陆架流向深海平原。
2
As it approaches the sea, the river meanders over the coastal plain.
快要入海时，印度河在沿海平原里蜿蜒流淌。
3
The sea was still high and heaving, but the zodiac pilots decided it was safe to go in to Salisbury Plain, the beach that about 40, 000 king penguins call home.