单语范例（未经PONS编辑处理）
This method can also be used with primary diazoalkanes, to produce secondary -diazoketones.
en.wikipedia.org Various packs appear to preserve the munin by different methods.
en.wikipedia.org Cuttings are not advised as a method of regeneration.
en.wikipedia.org Later photographic methods would use starlight to make a representation on a photographic plate.
en.wikipedia.org The ticket price is the much like the other city-owned public transportation methods, 150 kopecks.
en.wikipedia.org