单词	protogalaxy
释义	protogalaxy noun pro·​to·​gal·​axy ˌprō-tō-ˈga-lək-sē  : a cloud of gas believed to be the precursor to a galaxy Word History First Known Use 1950, in the meaning defined above
随便看	ha ha ha va ha'p'orths ha'pennies ha'penny ha'porth ha-erh-pin ha-ha ha-has HA1c HAA haab haafs haak-en-steek Haakon VII haar haarder Haarlem haarlemmermeer haars haastia iroquoians Iroquois iroquoises Irpex

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