This area is still undeveloped.

An emu is a large flightless bird.

This coffee contains sweetener.

He is passionate about his research in futurology.

He is interested in the study of futurology.

After he solved the problem, he said, 'It's like seeing the true form of a ghost or a withered silver grass,' meaning things are not as scary as they seem.

Earthquakes, thunder, fires, and fathers are what people fear the most.

His words were filled with deep feelings.

Deep emotion was reflected on her face.

It is said that the principles of the free market promote competition and increase efficiency.