The flow of the river is very quiet and comfortable.

Last night, a mudslide occurred, and our town suffered significant damage.

Hydrogen sulphide is extremely toxic, and particularly at high concentrations, it is lethal to humans.

He is involved in the research of particle accelerators.

The police detained him in the detention center.

He stood up and started talking.

He decided to study abroad in America.

He is an international student from America.

He is a first-class chef.

Many types of fish inhabit this river basin.