A true electrolyte consists of ions in the pure state. 真正的电解质在纯态下由离子组成。
Gold is melted over a hot fire and all the dross or impurities come to the surface to be skimmed off, leaving only pure gold behind. 金会在熊熊的烈火中熔化，里面的一切杂质便会浮到表面，让人将它除去，留下来的，便是真正的精金。
