It is a square.

这是平方项。

youdao

It was like trying to square a circle. That is, it was impossible.

这就好比要把圆的变成方的。也就是说，是不可能的。

《牛津词典》

First of all, it's clear from the Pythagoras' theorem that a is the square root of ^2 + ^2.

首先,根据毕达哥拉斯定理,勾股定理在西方被称为"毕达哥拉斯定理"

耶鲁公开课 - 基础物理课程节选

All right, this is actually a very old piece of imperative knowledge for computing square roots, it's attributed to Heron of Alexandria, although I believe that the Babylonians are suspected of knowing it beforehand.

好，这是一个很古老的,关于计算平方根的程序性知识，是亚历山大的海伦提出的，不过我怀疑在那之前,巴比伦人就已经猜想过了。

麻省理工公开课 - 计算机科学及编程导论课程节选

And if we go ahead and square that, then what we get is a probability density, and specifically it's the probability of finding an electron in a certain small defined volume away from the nucleus.

我们得到的是，一个概率密度，它是，在核子周围，某个很小的,特定区域,找到电子的概率,所以它是概率密度。

麻省理工公开课 - 化学原理课程节选

If Facebook is a public square (and it is, by the way), your birthday is the day when the square stops for a moment to sing.

FORBES: Facebook Birthday: Or How I Got Destroyed by Betty White

It is also proposed that a square or plaza is created at the entrance to the pier, which could be shared with the neighbouring leisure centre.

BBC: Artist's impression of the new Felixstowe Pier

Comfort, warmth and shelter are just as abundant in a 20 x 20 foot room as it is in a 15, 000 square foot mansion.

FORBES: Giving Thanks