You might still want to go for an X-ray, however, just to be on the safe side.不过，为稳妥起见，你可能还想要照一个 X 光。Ore minerals, colloform and microcrystalline apatites , are identified as francolite through X - ray diffraction analys...
Ray was very giggly and joking all the time.蕾特别喜欢咯咯地笑，而且总是爱开玩笑。Ray and I ate our meal and reminisced about the trip.雷和我吃着饭，回忆起那次旅行。Ray will earn his keep on local farms while studying.雷求学期间会在当地的农场干活赚取生活费。...