In the world of mathematics, an abundant number refers to a number where the sum of its divisors is greater than the original number.

He gave a hastily prepared presentation.

He likes to take a walk in the park at dusk.

He is collecting the Zanbatou, an ancient Chinese anti-cavalry sword.

There is a lot of beautiful nature in my district.

How much does this luggage weigh?

Mr. Hijikata is my best friend.

It is important for us to respect cultural diversity and understand each other's differences.

Please teach me how to swim.

He rowed the boat using an oar.