This self-propelled lawnmower is very convenient.

His running ability is the best in the team.

In biology, the phenomenon of moving towards light is called phototaxis.

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

This cable-stayed bridge is famous for its beautiful design.

The Golden Gate Bridge is one of the iconic structures in America.

I went to San Francisco to see the Golden Gate Bridge.

My grandmother decided to get a bridge.

The biker gang is causing a commotion in the town.

I will participate in an obstacle race this weekend.