海洋 (hǎi yáng): 海洋; 海洋; 海（大量の塩水として）; 海の; 海洋の（複合語で連体的に使用）

There are all kinds of fish in the ocean.

I like swimming in the ocean.

Protecting the ocean environment is very important.

The ocean is much larger than the land.

He dreams of becoming an ocean scientist.

The ocean covers about seventy percent of the Earth's surface.

He likes to study marine life.

There are many kinds of fish in this ocean.