单词	nanogram
释义	nan·o·gram (nănə-grăm′) n. Abbr. ng One billionth (10-9) of a gram.
随便看	gastrologically gastrologist gastrology gastronome gastronomer gastronomic gastronomical gastronomically gastronomist gastronomy gastroparesis gastropod gastropub gastroscope gastroscopic gastroscopist gastroscopy gastrostomy gastrotomy gastrotrich gastrovascular gastrula gastrular gastrulate gastrulation

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