The police operation was encumbered by crowds of reporters.

警方的行动被成群的记者所妨碍。

《牛津词典》

Police in London are lining up a huge police operation for the Notting Hill Carnival in the wake of the rioting and looting that hit the city earlier this month.

本月早些时候，伦敦发生了骚乱和抢劫事件，目前伦敦警方正在为诺丁山狂欢节组织大规模警力。

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They explained that this was a police operation to rescue her, and they helped her put on a robe for modesty's sake.

她们向她解释，这是警察为解救她而采取的行动，此外，为了遮丑她们给她披上了一件长袍。

youdao

As of Monday,there were about But local media reports many of them left before the police operation.

VOA: standard.2009.09.22

A newspaper may report, for example, that police have arrested the suspected kingpin of a car-stealing operation.

VOA: special.2009.11.29

In Kandahar city itself, Afghan police and military forces are to take the lead in the operation.

VOA: standard.2010.05.26

In December a police operation to quell a prison revolt left 32 people dead.

ECONOMIST: Turkey

Being informed of an arrest, he believes, is not the same as interfering in a police operation.

BBC: Martha Kearney's week

Police officer Sean Collier was shot dead during the police operation to find the brothers on Thursday night.

BBC: US & Canada