柯林斯词典perimeter /pəˈrɪmɪtə/ (perimeters) 1. N-COUNT The perimeter of an area of land is the whole of its outer edge or boundary. 周邊; 周界 ...the perimeter of the airport. …機場周邊。 返回 perimeter剑桥词典the outer edge of an area of land or the border around it 周邊，邊緣 Protesters cut a hole in the perimeter fence . 抗議者在周圍的柵欄上砍出了一個洞。 A river runs along one side of the field's perimeter. 一條河沿這片田地的一側流過。 mathematics specialized the length of the outer edge of a shape 周，周長 返回 perimeter