1. The police arrested a suspected dynamitard who was planning to blow up the government building.
警方逮捕了一名涉嫌的爆破者，他计划炸毁政府大楼。

2. The group of dynamitards caused extensive damage to the railway tracks, disrupting train services.
那些恐怖破坏者对铁路轨道造成了重大破坏，导致列车服务中断。