My main business is the development of new products and marketing.

We had a picnic at the lake over the weekend.

The ship is rocking in the rough sea.

Sea snakes are known for their venom.

The cry of the black-tailed gull was echoing on the beach.

Awao-umi is a freshwater lake, and it is well-known for its beauty.

Sea eagles are good at catching fish in the sea.

That person is my friend.

I ate one apple.

He was working all day long.