单词	a draft for speech
释义	a draft for speech 演讲的草稿
随便看	hydrogen preferential oxidation hydrogen preheater hydrogen preparation hydrogen preparation equipment hydrogen present hydrogen pressure hydrogen pressure gauge hydrogen pressure regulating curve hydrogen pressure regulation hydrogen pressure regulator hydrogen pretreatment hydrogen probe hydrogen processes hydrogen processing hydrogen producer hydrogen producing hydrogen-producing hydrogen-producing acetogen hydrogenproducing acetogenic bacteria hydrogen producing acetogenic bacteria hydrogen-producing acetogenic bacteria hydrogen-producing acetogens hydrogen producing bacteria hydrogen-producing bacteria Hydrogen-producing bacteria group