the sky
the heavens
the firmament
starry sky
1. The stars shimmered in the endless vault of heaven.
繁星在无尽的苍穹中闪烁。
2. He gazed up at the vast vault of heaven in awe.
他敬畏地仰望着广阔的天幕。
3. A single bird flew across the blue vault of heaven.
一只孤鸟飞过蔚蓝的苍穹。
A: Look at the beauty in the vault of heaven tonight.
A：看今晚苍穹之美。
B: It is truly a magnificent sight to behold.
B：这景象确实壮丽无比。
1) 苍穹
2) 天空
3) 天幕
1. 苍穹；天空
e.g.The moon hangs suspended in the vault of heaven.
月亮悬挂在天幕之中。
noun phrase
1. a poetic or literary term for the sky or the heavens
Synonym: sky, heavens, firmament