earthward
adverb uk/ˈɜːθ.wəd/ us/ˈɝːθ.wɚd/ (also earthwards, uk/-wədz/ us/-wɚdz/)
向地球（地）；向地面（地）
towards the earth, from the air or from space
The plane began to spiral earthward. 飞机开始盘旋着坠向地面。
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