这种药物通过提高大脑中血清素的含量来产生疗效。The drug works by increasing levels of serotonin in the brain.他们正在测定血清蛋白和胆固醇的浓度.They are determining the serum - protein and cholesterol levels.一般公众均可获得血清.The serum is available to the general publ...
Italian composer of some 75 operas, including Lucia di Lammermoor ( 1835 ).多尼采蒂,盖尔塔诺1797-1848意大利作曲家,大约写有75部歌剧, 其中包括拉美摩尔的露西亚 ( 1835年 )Joan Sutherland as the title role of Donizetti's Lucia di Lammermoor during the Ma...