In order to survive in this ever-changing world, it is necessary to constantly continue learning new knowledge.

You can see drift ice in the Sea of Okhotsk in winter.

He was standing on the seashore, staring at the distant horizon.

He gained sailing experience in the Arabian Sea.

When summer vacation comes, I go to the sea every day wearing swim trunks.

The atmosphere of the meeting has grown tense.

He is a successful businessman, but just like the proverb 'the more the rice stalks grow, the more they bow', the more his success grows, the more humble he becomes.

The steepest descent method is one way to solve optimization problems.

The olive ridley sea turtle is one of the smallest sea turtles in the world.

The flatback sea turtle is a species endemic to Australia and is on the brink of extinction.