A line from Gamma Crucis through the blue star at the bottom of the cross, Alpha Crucis, points toward the south celestial pole.是什么意思_A line from Gamma Crucis through the blue star at the bottom of the cross, Alpha Crucis, points toward the south celestial pole.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句