the expanse of air surrounding the earththe starry heavensthe space shuttle gradually disappeared into the heavens
the starry heavens
the space shuttle gradually disappeared into the heavens
blue, firmament, high, sky, welkin
midairhorizon, skyline
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。