Tear-gas bombs were set off to disperse the crowds .

施放了 催泪弹来驱散人群。

It is for the government and the metropolitan police to determine the precise rules of engagement . Non-lethal tools such as tear-gas and water-cannon should be considered rather than plastic bullets which have an unhappy history in Northern Ireland .

政府和伦敦警察厅（metropolitanpolice）应制定周密的应对规则，应当考虑 催泪 瓦斯和高压水枪等非致命武器，但不应使用塑胶子弹，后者在北爱尔兰曾留下令人不快的记忆。

STANDING GUARD : An Israeli soldier seen behind empty tear-gas grenades patrolled during a demonstration against Israel 's separation barrier in Nabi Saleh West Bank Friday .

站岗：一名以色列士兵，看到后面空 催泪 瓦斯手榴弹，在对以色列在彩蝶萨利赫，西岸，星期五隔离墙示范巡逻。

He was particularly pleased that on his watch the country 's tear-gas factories all closed down .

特别值得称道的是，在他的关注下，韩国所有的 催泪 瓦斯工厂全部关闭。

The police fire tear-gas shells in an attempt to disperse the crowd .

警察施放 催泪弹企图驱散人群。