单词	heavier-than-air
释义	heavier-than-air adjective heav·​i·​er-than-air ˈhe-vē-ər-ṯẖən-ˈer  : of greater weight than the air displaced Word History First Known Use 1903, in the meaning defined above
随便看	oratrixes orb orb weaver orb web orb-spider orbed orbic orbical Orbicella orbicular orbiculares orbicularities orbicularly orbiculate orbicule orbier orbiest orbignyae orbignyas orbing orbit orbital orbital arch orbital electron orbital fossa

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