"circumference" in Chinese (Simplified)

周长 (圆的)圆周

Definition

周长是指围绕一个圆或弯曲形状的距离。它表示外边的长度。

多用于数学和科学，仅指圆或曲线的外部边界。用于直线形状时不是'circumference'而是'perimeter'。常见表达有“圆的周长”、“计算周长”。

The circumference of the circle is 10 centimeters.

这个圆的**周长**是10厘米。

We measured the circumference with a tape measure.

我们用卷尺测量了**周长**。

To find the circumference, multiply the diameter by pi.

要计算**周长**，用直径乘以圆周率。

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

那棵树很大，树干的**周长**几乎有三米！

Did you know the formula for circumference by heart?

你知道**周长**的公式吗？

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

在科学展览会上，我们比较了不同轮子的**周长**。