社会科学家研究从数据中得出的统计信息，而呈现这些统计数据的最佳方式通常是图表形式。
Social scientists work with statistics derived from data, and the best way to present these statistics is often in graphic form.
从韩国到日本再到美国，学校将说英语的机器人呈现在学生面前。
From Korea to Japan to the United States, schools are putting English speaking robots in front of their students.
通道和呈现层从以下几个点评估。
The channels and presentation layer is assessed from the following points.
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