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来源:雅诚德英语网
So I have here silver nitrate and there I have sodium chloride and I mix the two.
好了,这是硝酸银,而这是氯化钠,我将两者混合。
So I have here silver nitrate and there I have sodium chloride and I mix the two.
好了,这是硝酸银,而这是氯化钠,我将两者混合。