sphere

The glass blower shaped the molten liquid into a perfect, transparent sphere.

(Chinese) 吹玻璃工人将熔融的液体塑成了一个完美的透明球体。

Astronomers study the Earth as a giant sphere rotating in space around the sun.

(Chinese) 天文学家将地球作为一个在太空中绕太阳旋转的巨大球体来研究。