当示威开始变得暴力时，警察被叫来恢复秩序。
As the demonstration began to turn violent, the police were called in to restore order.
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解释
order 在这里是名词, 表示"公共秩序", 指人们遵守法律、社会或公共场所维持正常而没有骚乱的状态。
As the demonstration began to turn violent, the police were called in to restore order.
order 在这里是名词, 表示"公共秩序", 指人们遵守法律、社会或公共场所维持正常而没有骚乱的状态。