Makoto is my best friend.

Makoto is my best friend.

Makoto is my best friend.

Masho is my best friend.

She overreacted to his words.

Nuclear reactions are used for mass production of energy.

This chemical reaction is very dangerous.

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.