The stock market fluctuated due to uncertainty about upcoming government policies

Doctors urged people to get regular hearing tests to detect hearing loss earlyThe local museum hosted a lecture by a famous historian about ancient civilizations

A new study showed that air pollution from traffic affects lung health in cyclistsThe city council announced plans to build more pedestrian crosswalks in busy areasA major airline added new in-flight Wi-Fi service to all its planes

Scientists developed a new lightweight metal that is used in aircraft constructionThe school district added a course on climate change to the science curriculum

Researchers found that eating dark chocolate improves blood flow to the brain

The government passed a law to limit noise from nightclubs and bars in residential areasA sports equipment store opened a new location in a shopping mall

A local newspaper printed a special edition for the city’s anniversaryA bakery made custom cakes for weddings and birthdays

A construction company used 3D printing to build parts of a new houseA smartphone company announced a partnership with a wireless carrier

(责任编辑：海淀区)