He learned about hermaphroditism in his biology class.

This subfossil shows the life of creatures from thousands of years ago.

I jog for half an hour every day.

He stepped into the world of minor criminals.

I hung flypaper in the kitchen and caught the flies that came flying.

He experienced the true meaning of the phrase 'the searcher becomes the searched'.

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

This character needs a semi-voiced mark.

This new semiconductor has the potential to revolutionize the electronics industry.

I learned how to calculate the hacoversine in trigonometry.