The touchpad on my laptop is not responding.

This necklace is very expensive.

She is respected as the first lady of the country.

He solved the complex problem as if cutting the Gordian knot.

This chemotransmitter plays a crucial role in transmitting information between nerve cells.

Chemotransmitters play an important role in the transmission of information between nerve cells.

We worked together to achieve our goal.

The Brachiosaurus was a very large dinosaur.

He is interested in astronomy, especially in studying Draco.

Neurotransmitters play a crucial role in transmitting information in the brain.