All the buildings have names and form a half circle.

所有的建筑都有名称，连在一起构成了一个半圆。

youdao

But, if it's like a circle or a half circle, or things like that, then even if a problem doesn't tell you to do it in polar coordinates you might want to seriously consider it.

但是如果它是一个圆或者半圆，或者是类似的，即使题目没有提示你在极坐标里做，你也应该认真考虑一下。

youdao

They stood in a half circle.

他们站成了半圆形。

youdao

Arches are formations that look like half a circle above an opening or hole in a rock.

VOA: special.2009.04.15

So that a half circle, instead of calling it 180 degrees, And a quarter circle, instead of 90, It's good to know certain famous angles.

半圆,不说它是180°,四分之一圆,不叫90°,知道一些常用的角度很有必要

耶鲁公开课 - 基础物理课程节选

The memorial has a large wall shaped in a half-circle.

VOA: special.2009.05.25

We all got in a half circle and sang to each other for a couple of hours.

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The wedding photos told their own story: Rose looking pert and joyous in a white half-circle hat, with a big coat hiding the bump because she'd fallen pregnant some months before, while George was in a bad suit twiddling his fingers, and with his eyes elsewhere.

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Like the yin-yang symbol, each half of the circle embraces some of its opposite.

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