perimeter
英[pə'rimitə]美[pə'rimitə]
n.
周长，周界
周长，周界
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- That hypothesis fell into doubt when the chicken hopped the fence and began pacing the perimeter of our yard with a proprietary air.
不过，当它跳过篱笆开始以主人的姿态在我们的院子四周踱步时，这个猜测就站不住脚了。收藏 - The perimeter of the airfield is protected by guard - dogs.
机场外的环形防卫圈由警犬保卫着。收藏 - A line that forms the boundary of an area;a perimeter.
边界形成某地区界限的线;围界收藏 - the perimeter of a rectangle
一个矩形的周长收藏 - The barbed wire fence round the perimeter discouraged intruders.
周围有铁丝网阻止了外人闯入.收藏
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