His father fell into a persistent vegetative state due to a traffic accident.

Basic oxides react with acids to produce salt and water.

It is important for us to respect cultural diversity and understand each other's differences.

This area is affected by radioactive fallout from past nuclear tests.

She was diagnosed with polycystic ovary syndrome.

This area is seriously contaminated with radioactive isotopes.

My father was diagnosed with ankylosing spondylitis.

In organic chemistry, pyruvic acid plays an important role.

The study of filterable pathogens is an important part of virology.

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