Maru is my best friend, and she always helps me.

I think his actions are rash.

I think his actions are rash.

This bathroom is made of diatomaceous earth, which has the effect of absorbing moisture.

He is known as a perspicacious person.

Diatoms are tiny marine organisms that produce oxygen and support the Earth's ecosystem.

He solved the problem with a perspicacious perspective.

Even if by any chance he doesn't come, we will have the party.

This book is recommended to everyone.

My savings have now reached ten thousand yen.