He arrived in San Francisco during the Gold Rush of the 19th century.

He used an old term and said he arrived in San Francisco.

The government is building a nationwide surveillance network.

The patrol boat is patrolling the sea area.

He always watches over us as our guardian.

He is walking the path of villainy.

As evening came, the evening rain that started to fall heavily was hitting the window.

Bou is my best friend.

He tried to follow the dog, but the dog was too fast to catch up.

He is passionate about his firefighting job.