oxide

n.氧化物

owing to, owl, owlet, owlish, owlishly, own, own brand, own goal, owner, owner-driver, owner-occupied, owner-occupier, ownerless, ownership, ox, ox-eye, Oxbridge, Oxfam, Oxford, oxidation, oxidize, oxidize, oxidise, Oxon, oxtail, oxy-acetylene, oxygen, oxygen mask, oxygen tent, oxygenate, oxymoron, oyez, oyster, oyster bed, oyster-catcher, oz, ozone, ozone layer, P, P and O, p and p,