This sea route is an ancient trade route.

The seahorse is a small marine creature, named for its resemblance to a horse's head.

This jacket is made of down feathers and is very warm.

I go to the sea with my family during summer vacation.

Hmm, that's a good idea.

He got tired of doing the same job every day.

We need to confirm his existence or nonexistence.

We always swim in that bay during the summer vacation.

Masao is my best friend.

The difference between his cooking skills and mine is truly like chalk and cheese.