The good news is that we know that a lot of seaweed already reaches the deep ocean, after storms or through submarine canyons.

好消息是，我们知道已经有很多海藻在海上风暴后或者通过海底峡谷到达了海洋深处。

Most submarine canyons are found along  continental margins, often at the mouth of a large river.

大多数海底峡谷位于大陆边缘，通常位于大河的河口。

While submarine canyons plummet into the deep sea, rocky formations, called seamounts, rise from  the darkness.

当海底峡谷坠入深海时，被称为海山的岩石构造从黑暗中升起。

Beyond submarine canyons and undersea mountains, deep sea trenches, like the Mariana Trench in the Pacific Ocean, plummet into a world of darkness  and desolation.

除了海底峡谷和海底山脉，深海海沟，就像太平洋中的马里亚纳海沟一样，坠入黑暗和荒凉的世界。