今天我们要学的词是 margin of error. Margin of error 误差幅度。最近民调显示，爱奥华州党团会议召开前夕，Hillary Clinton has a three percentage-point lead over Bernie Sanders, within the poll’s margin of error of 4 percent. 希拉里.克林顿以三个百分点领先于桑德斯，在这次民调的误差范围之内。Scientists at the University of Leuven developed a unique test of blood samples that can determine a person’s age with a margin of error of 3.75 years. 鲁汶大学的科学家们研制出了一种独特的血样测试法，可以判断出血样所属人的年龄，误差不超过三年零九个月。 好的，我们今天学习的词是 margin of error, margin of error, margin of error....