当波浪在背景中破碎时，从海底升起的气泡扭曲成半圆形。

An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background.

youdao

当波浪在背景中破碎时，从海底升起的气泡扭曲成半圆形。

An air bubble ascending from the ocean floor contorts and twists into a semicircle as a wave breaks in the background.

youdao

这导致了泥土阶或石阶的建构，安排观众们面对讲演者坐成一个半圆形。

This led to the construction of earthen or stone steps, arranging the audience into a semicircle in front of the speaker.

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If I looked within the skin, one of the lower layers of your skin, the connective tissue layer, you'd find many fibroblasts there and they're just waiting in a more rounded shape than this, just waiting to do their job.

如果观察皮肤,更深处的一层细胞,结缔组织层,就能看到许多成纤维细胞,它们平时形状接近圆形,时刻准备着去完成自己的任务

耶鲁公开课 - 生物医学工程探索课程节选