My high school has very strict rules.

He was arrested for obstruction of public duties.

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Biotechnology is a science that understands the mechanisms of life and utilizes them.

This road is a dead end, so we have to find another way.

The Commonwealth of Independent States is an intergovernmental organization formed by part of the former Soviet Union.

He is an expert in primatology and is engaged in the study of gorilla behavior.

I have been to Salt Lake City.

He is studying hard every day.

Ri is wearing black clothes.