这一地区周围设有严密的安全警戒圈。

There is a tight security cordon around the area.

youdao

立刻在黑人地带设置了警戒圈，由五千名警察外加三千多名志愿人员组成。

Immediately a cordon of five thousand police, augmented by more than three thousand volunteers, was thrown about the Black Belt.

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甚至在星期四天亮之前，数百名准军事人员和挥舞着警棍的防暴警察开始包围公园，在公园四周设置警戒圈。

Even before dawn on Thursday, hundreds of paramilitary soldiers and baton-wielding riot police began arriving to form a human cordon around the public park.

youdao

甚至在星期四天亮之前，数百名准军事人员和挥舞着警棍的防暴警察开始包围公园，在公园四周设置警戒圈。

Even before dawn on Thursday, hundreds of paramilitary soldiers and baton-wielding riot police began arriving to form a human cordon around the public park.

youdao