The simulation of mans motion plays an important role in the areas of distributed virtual battlefield simulating, disaster rescuing and interactive riot policeman exercising.

人体运动的仿真在分布虚拟战场环境仿真、灾难救援训练、交互式防暴演习等领域有重要的应用。

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Six people were killed in the riot, including a policeman.

暴乱中有六人死亡，包括一名警察。

《牛津词典》

Every year at Stonehenge, crowds of hippies try to approach the stone circles and then are ritually whacked over the head by policeman in traditional riot gear.

因为石柱阵每年都有大批嬉皮，然后就像是仪式一般，被身着传统防暴装备的警察打得头破血流。

youdao

One 26-year-old local policeman changing into riot gear said he personally knew perhaps 100 of the protesters he was policing.

BBC: Why Slovenia is content no more

That is, until the publication earlier this month of photographs showing Mr Fischer beating up a policeman during a riot in 1973, followed by his appearance this week as a witness at the murder trial of a fellow street-fighter turned terrorist.

ECONOMIST: Charlemagne

The Christmas Eve 1806 protest led to a riot in which dozens were injured and a policeman was killed.

CNN: When Italian immigrants were 'the other'