The police are closely monitoring the activities of the motorcycle gang in town.

Olfactory cells play an important role in allowing us to sense smells.

Lower fatty acids play an important role in the human body.

Essential fatty acids are necessary to be taken from our diet because our body cannot produce them on its own.

We decided to plant a shelterbelt to protect the crops from the wind.

The Hachijō dragonfly is a unique species to Hachijō Island, and its beauty is captivating.

He crossed the border as an asylum seeker.

He is training using a metal rod.

The Yi were an ancient tribe in eastern China.

The continental slope is a part of the seafloor topography, connecting the continental shelf and the deep sea floor.