The Japanese night heron was quietly targeting fish in the pond.

The theory of phonetic shift is an important part of linguistics.

She decided to try the reverse cowgirl position.

We should always remember the power of Kannon in difficult times.

She was a secret kunoichi (female ninja).

He threw a handful of sand into the sea.

"Once in a lifetime" means to cherish the encounter that happens only once in one's lifetime.

He missed a once-in-a-lifetime opportunity.

He was focused on his work all day long.

One day, he suddenly decided to go on a journey.