英语单词：celestial sphere

中文含义：天球，天穹

英语词性：noun

美式音标：sɪˈlɛstʃəl spɪr

同义词：heavenly sphere, empyrean

易混淆单词：terrestrial sphere

双语例句：

1. The celestial sphere is an imaginary sphere that surrounds the Earth.

天球是围绕地球的虚构球体。

2. The celestial sphere appears to rotate around an axis.

天球似乎沿着一个轴旋转。

3. The celestial sphere is used by astronomers to locate and study celestial objects.

天球被天文学家用来定位和研究天体。