And also had blind evaluators-- people who didn't know which condition they were in, evaluate how they were walking.

还找来盲测员-,那些不了解情况的人，评估他们的走路。

哈佛公开课 - 幸福课课程节选

So for each student the tutor builds a model of that Student's current state what the computer thinks they Know and doesn't know, and tries to present the student options that best meet what the tutor thinks are the student's need at that moment.

因此辅导系统会给每个学生,创建一个模型记录他们当前的学习状态,判断他们已经掌握和还不了解的知识,然后给出此时导师认为,最符合他们需要的选择。

麻省理工公开课 - 媒体、教育、市场课程节选

Why should citizens of one state, namely one's own have any moral priority over the citizens of another state when, again, we don't know them and we may well be mistaken in our assumption ? that they are enemies or friends?

为何一国的公民，即为何某人能拥有,凌驾其它城邦公民的道德优势,尤其是我们根本不了解他们,我们可能误将他们,错认为是敌人或朋友？

耶鲁公开课 - 政治哲学导论课程节选