riot gear
noun [ U ] uk/ˈraɪ.ət ˌɡɪər/ us/ˈraɪ.ət ˌɡɪr/
防暴装备
the special clothes and equipment that the police use when they are dealing with a large violent group of people
Police in riot gear broke up the protest. 全副武装的防暴警察制止了这次抗议行动。