Titanium in the pure state can exist in either of two allotropic forms.纯钛以两种同素异形的形式存在.Carbon and sulfur and phosphorus are allotropic elements.碳、硫磺和磷是同素异形元素.Ozone ( O 3 ) is allotropic form of oxygen ( O 2 ) with three a...
Parents, to paraphrase Philip Larkin, can seriously damage your health.菲利普·拉金的意思是：父母可能会严重损害你的健康。I had the conviction Larkin's nerve would crack and he'd squeeze the trigger in a reflex action.我确信拉金会神经崩溃，他会反射性地扣...