gas giantWiktionary 原文英美构词拆解gas词干+giant词干词源说明From gas + giant, coined by American science-fiction writer James Blish and first attested in 1952 in a rewritten version of his 1941 short story Solar Plexus.释义名词noun1(astronomy) A large planet composed mostly of gaseous hydrogen and helium, along with methane and ammonia; possibly with a solid core.同族词相关词 1