perimeter

• 1. 周长: Perimeter | Girth
• 2. 圆的周长: circumference | the circumference of the circle | circumference of a circle
• 3. 圆周长: circumference | length of circumference

更多释义

• 1.地球的周长大约为25 000英里。
  The earth is almost 25 000 miles in circumference.
  dict.yoduao.com
• 2.这棵树周长6英尺。
  The tree has a circumference of 6 feet.
  dict.yoduao.com
• 3.要将这个公式转换为一个表达式，你需要使用变量来记录半径及周长。
  To translate this formula into an expression, you would use variables to record the radius and circumference.
  dict.yoduao.com

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