We need the circumference of the area.

我们需要这个区域圆周长。

Everyone should have access to the great works of the world, whether heavy (Shakespeare, “Moby-Dick”, pi to 1m places), or light (Peter Pan, Sherlock Holmes, the “Kama Sutra”).

所有人都应该可以阅读世界上著作，不管是晦涩（莎士比亚，“白鲸记”，圆周率记录到小数点后一百万位），还是轻松（彼得潘，夏洛克·福尔摩斯，“爱经”）。

Any intelligent species might have an interest in natural numbers (1, 2, 3 and so on) as well as things such as pi.

任何聪明物种都可能对自然数(1、2、3等等)和圆周率之类东西感兴趣。

Unlike an adventure round the circumference of the Earth.

不像沿着地球圆周进行冒险。

Archimedes of Syracuse who lived in the 3rd century B.C. made history and headway in approximating the value of pi.

住在前3世纪锡拉库扎Archimedes在接近圆周率得历进展。

Round the circumference with the back of a knife.

用刀背绕圆周敲击。

One pizza restaurant is celebrating Pi Day in a big way.

有一家披萨店用盛大形式欢庆圆周率日。

Pi Day has even been designated by UNESCO as the International Day of Mathematics.

联合国教科文组织甚至将圆周率日指定为国际数学日。

Or that your magic mirror can turn pi into pi.

或者你魔镜可以把圆周率变成 3.14。

Again, thanks for joining us, Devin, and happy Pi day.

再次感谢你来我们节目，Devin，圆周率节快乐。

I could rattle off pi to 25 places.

圆周率能随便背个 25 位数。

The ratio of the circumference of a circle to its diameter.

圆周长与其直径之比。

721. The recruit made the current circulate in the circuit on the circumference.

新兵使电流在圆周上电路中循环（传播）。

Met! True art thou, lad, as the circumference to its centre.

握一握！孩子，你真像圆周对圆心一样忠诚。

You see, the ratio of a circle's circumference to its diameter is what's known as an irrational number, one that can never be expressed as a ratio of two whole numbers.

因为，圆周长和直径比值是一个无理数，它无法用两个整数比值来表示。

A bulldozer is a powerful vehicle with a caterpillar track on it, so it means that the wheels act kind of in a long caterpillar-like tread, and those treads move in a long circular motion rather than just in a circular motion.

推土机是一种装有履带强大车辆，这意味着其轮子作用类似于长条形履带式履带，这些履带进行是长周期圆周运动， 而非简单圆周运动。

The Hula Hoop was a colorful plastic tube joined to form a big circle. To play with it, you moved your hips in a circular motion.

呼啦圈是一个大圆圈，由五颜六色塑料管连接而成，玩游戏时，臀部做圆周运动。

You can choose anything that you want: a poem, the state capitals, the first 25 digits of PI.

一首诗、各州首府或者圆周率前25位。

By the way, if you want to memorize Pi or something else for a longer time, forget this technique turn off your screen and start.

顺便说一句，如果你想长时间记住圆周率或者别什么，忘记这个技巧，关掉屏幕开始。

People had to learn to move their hips in a circular motion, like a hula dancer in Hawaii, to spin it around their body.

人们必须学会像夏威夷草裙舞演员那样，以圆周运动式移动臀部，使这个大圆管绕着身体旋转。