He decided to withdraw from the laboratory.

My father works at a sawmill.

We report the progress of the project based on the principle of reporting, contacting, and consulting.

In this forest, various organisms live by building a relationship of mutualism.

In ancient Japan, the Housou clan played an important role.

Ainoya-san is my best friend.

The phrase 'the good and bad deed cancel out' perfectly describes his past actions.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.