The land at the bottom of the sea was black shale rock.

底的土地黑色页岩岩石。

There's a log in the hole in the bottom of the sea.

底的洞穴里有段木头。

In order for things to improve underwater down under.

这样才能保证底的情况得到改善。

The wrecked ship rested on a shelf at the bottom of the sea.

破毁的船只搁置在底的暗礁上。

The destruction of old ocean floor happens in 'subduction zones.'

旧底的破坏发生在“俯冲带”。

Iit's organic material that's sinking to the seabed and it's food here.

底的有机物质，这里的食物。

It's organic material that's sinking to the seabed and it's food here.

底的有机物质，这里的食物。

And so we -- we try every minute possible on the bottom.

所以我们尽量利用好在底的每一分钟。

The little mermaid lives in a beautiful castle in the deep blue sea.

小美人鱼住在蓝色底的一个美丽城堡里。

Coral reefs cover less than 1 percent of the ocean floor.

珊瑚礁覆盖面积不足底的1%。

But the industry also adds to the junk piling up on the ocean floor.

但该行业也使堆积在底的垃圾不断增加。

I gather they're putting up a stone to mark those whose bodies were never found.

他们大概要建个石碑，纪念那些长眠底的人。

And so more people have been to space than the bottom of the ocean.

所以，上过太空的人 比下过底的人还多。

The sensors also recorded the animals' location and depth beneath the sea.

传感器还记录了这些动物在底的位置和深度。

Bloodworms are small sea creatures which burrow into the mud of the ocean floor.

血虫一种小型的洋生物，它们在底的泥浆中挖洞。

Cloud cover and glare from the seafloor also help keep the Bahamas seagrass hidden.

云层和底的强光也有助于让巴哈马草保持隐蔽。

It can deploy a robot that can easily reach the 4-kilometre-deep seabed.

该船只能够部署一个可以轻松到达 4 公里深底的机器人。

To get them in place, the turbines are guided onto steel bases on the seafloor.

要安置这些涡轮机，就需要将它们引导到底的钢座上。

I worked the deep wells for a week and did nothing, he thought.

我在这底的深渊上转游了一个礼拜，可一无作为，他想。

Because those hydrothermal vents underneath that sea might have created a very conducive environment for life.

因为底的热液喷口可能为生命创造了非常有利的环境。