他们奉命加强巡逻，保卫我国的领空。
They were ordered to intensify their patrols to protect our air space.
保安警察在历经几个月加强巡逻，以及后来曾接受特训可提供廿四小时社区保安的新增警力报到后，已经向帮派份子下达最后通牒要求他们离开。
Pacification involves an ultimatum to the gangs to leave, followed by months of heavy patrols and then the arrival of new, specially trained recruits who provide 24-hour community policing.
法国已经加强了与意大利边境处的巡逻，上月遣返了已经过境的大约3,000名突尼斯人。
France has stepped up patrols near the border with Italy and last month sent back nearly 3, 000 Tunisians across the frontier.
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