バイクに乗る人はみんなヘルメットをしていないが白バイの警察官はヘルメットを着用している
A street with several cars and motorcycles riding down the street,busy city street is filled with various vehicles,including cars,motorcycles,and scooters,man rides motorcycle down street,while another man rides scooter,both riders wear helmets for safety,people walk along sidewalk