Computer scientists have created an animated figure called Betty's Brain, who has been "taught" about environmental science by hundreds of middle school students
计算机科学家创造了一个名为“贝蒂的大脑”的动画形象，它已向数百名中学生“教授”了环境科学知识。
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Computer scientists have created an animated figure called Betty's Brain, who has been "taught" about environmental science by hundreds of middle school students.
计算机科学家创造了一个名为“贝蒂的大脑”的动画形象，数百名中学生已经向它教授了环境科学知识。
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Have you ever been in the middle of speaking and suddenly…brain freeze! It is possible that you forgot something for the moment.