He chose suicide.

Facing a desperate situation, he chose to commit suicide.

You can defeat this monster with a one-hit kill.

He likes to take a walk in the park at dusk.

What is this object?

He is conducting research on celestial bodies.

This antibody strengthens the defense against the virus.

We should respect the opinion of the whole.

He exercises every day to maintain the health of his body.

In my school, there are physical education classes every day.