He is an expert in crystallography.

If the number of platelets is low, you are more likely to bleed.

Our team advanced to the semifinals.

This crystal has a very beautiful shape.

She overreacted to his words.

Nuclear reactions are used for mass production of energy.

His single word triggered a chain reaction, and everything changed.

I was surprised by his overreaction.

His body showed a rejection reaction to the transplanted organ.

He is dedicated to the study of immunochemistry.