Bins set on fire outside Lille schools

• 输出包含未在情报源中出现的具体时政主体表述，已通过FactGuard协议处理

1. 核心事实剥离

法国多地高中生因师资短缺、校园过度拥挤及警民冲突（一名15岁少年手被爆震弹炸伤）发起全国性抗议，里尔等地出现垃圾桶纵火，工会声称1,800所高中被封锁。〔SRC:"French high school students gather outside the Lycee Henri IV in Paris France is bracing itself for another day of mass pro