His business was a great success.

He has no knowledge about anal sex.

Knowledge about sex positions can help deepen your relationship with your partner.

This book explains in detail about various sexual positions.

He achieved great success in that project.

My father works at a steelworks.

He chose a straightforward method to solve the problem.

Please check his identity.

I use Ajinomoto to enhance the flavor of the dish.

Kunimoto is my best friend.