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复数形式
perimeters
1
周长
the total length of the external boundary of something
- The geometry student calculated the perimeter of the rectangular garden to determine how much fencing would be needed.
几何学生计算了矩形花园的周长，以确定需要多少围栏。
- In her math homework, she had to calculate the perimeter of various shapes, including triangles, squares, and pentagons.
在她的数学作业中，她不得不计算包括三角形、正方形和五边形在内的各种形状的周长。
- The farmer used a long measuring tape to determine the perimeter of his rectangular cornfield before installing a new fence.
农民在安装新围栏之前，使用了一条长长的卷尺来确定他矩形玉米田的周长。
- The science project required students to build a model volcano and measure the perimeter of its base for stability analysis.
科学项目要求学生建造一个火山模型并测量其底部的周长以进行稳定性分析。
同义词：
2
周边, 边缘
the margins at the outer edge of an area
- Security personnel were stationed at the perimeter of the concert venue to control the crowd and prevent any disturbances.
安保人员被部署在音乐会场地的周边，以控制人群并防止任何骚乱。
- The wildfire fighters focused on containing the blaze within the perimeter to prevent it from spreading to residential areas.
消防队员专注于将火势控制在周边范围内，以防止其蔓延到居民区。
- The interior designer suggested placing decorative lights along the perimeter of the room to create a warm ambiance.
室内设计师建议沿着房间的周边放置装饰灯，以营造温暖的氛围。
- During the military exercise, the soldiers established a secure perimeter around the camp to defend against potential threats.
在军事演习期间，士兵们在营地周围建立了一个安全的边界以防御潜在的威胁。
- The archaeologists carefully excavated the perimeter of the ancient site to uncover any hidden structures or artifacts.
考古学家们仔细挖掘了古代遗址的周边，以发现任何隐藏的结构或文物。