The underwater world is really fascinating.

水下世界真是引人入胜。

youdao

You can now travel through the underwater world.

现在，您可以穿越海底世界。

youdao

Man has always wanted to see the underwater world.

人类一直都想一窥海底世界的奥妙。

youdao

It is a very popular place for visitors who want to learn more about the wonders of the underwater world.

VOA: special.2009.09.18

As he guided me through the virtual ocean, which currently has 60 species of fish, he was talking about the whole underwater world.

FORBES: theBlu: Avatar Meets Facebook Underwater And A Strange Sensation Surfaces

The most important metallurgical coal basin in the world is underwater.

FORBES: Australian Floods Cause Drought in the Coal Market

"Dubai is a winner for tourism because the government has created conditions to promote the industry, " says Bogdan Gutkowski, the chief executive of Swiss investment firm BIG InvestConsult AG, which is joining with Drydocks World to build the underwater hotel.

WSJ: Dubai's New Boom Is Hotel Rooms