Hi!Detroit's annual auto show in January was somber, but Shanghai's show dazzled attendees with throngs of models, rock bands and light shows. This year, Nissan skipped Detroit and attended the Chinese event in April. Mercedes-Benz, BMW and Porsche all unveiled new-vehicle models in Shanghai.
Q1: rock bands=?
Q2: light shows=?
A rock band is a musical group that plays rock music
Light shows are displays and effects usually accompanying concerts, or for a show to create atmosphere on a holiday such as 4th July.