"circumference" in Chinese (Traditional)

周長 (圓的)圓周

Definition

周長是指繞著一個圓或彎曲形狀的距離。它表示外邊的長度。

常用在數學和科學領域，專指圓或曲線的外部邊界。若是直線形狀則用'perimeter'而不是'circumference'。常見搭配“圓的周長”、“計算周長”。

The circumference of the circle is 10 centimeters.

這個圓的**周長**是10公分。

We measured the circumference with a tape measure.

我們用捲尺測量了**周長**。

To find the circumference, multiply the diameter by pi.

要計算**周長**，用直徑乘以圓周率。

The tree was huge—the circumference of its trunk was almost three meters!

那棵樹很大，樹幹的**周長**幾乎有三米！

Did you know the formula for circumference by heart?

你還記得**周長**的公式嗎？

For the science fair, we compared the circumference of different wheels.

在科學展覽會上，我們比較了不同輪子的**周長**。