The team set up a perimeter and began sweeping the area clean.

研究小组在此地圈定了一个周长，开始着手清理这块区域。

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Maintain a "mulch-free" area around the perimeter of the home that it is at least 12" wide and comprised of rock or gravel.

保持一个围绕房屋周边的“无植被覆盖区”，由至少12寸宽的岩石或砾石组成。

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The restaurant, which opened earlier this week, has a circular seating design with a track placed around the perimeter of the seating area.

这家餐馆在本周初开业，在餐厅内座位区周边，有一个环形的轨道。

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Local fishermen are restricted from sailing beyond the designated area's perimeter, several dozen miles outside the main port.

CNN: Seychelles' gunboats keep pirates from 'blue gold'

At the start of each experiment the group cuts a fire break along the perimeter of the area.

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Authorities late Sunday located the second inmate and said a security perimeter had been set up around the area where 33-year-old Danny Provencal has been found.

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