“一半”怎么读？

窗帘拉上了一半以遮挡阳光。The curtains were half drawn to cut out the sunlight.普利茅斯海洋研究所的科学家一半有学士学位，另一半则有博士学位。Half of PML's scientists have first degrees, the other half have PhDs.与此同时，黑胶唱片的销售量在1992年下降了一半，只有670万张。Meanwhile, sale...

“一半”的英语可以翻译为：one half，half，in part，halflings，moiety ...