The cause of his lateness was a train delay.

Rhinovirus is a common cause of colds.

This is a general Japanese home cooking.

This is a general opinion.

I caught a cold.

I caught a cold.

He found the target and shot the arrow.

Personally, I think this movie is the best.

He is talking about something specialized that a commoner cannot understand.

In 1918, the Spanish flu spread all over the world, and many people died.