But they said more study must be done to confirm their beliefs.
但是他们表示需要做更多研究来确认他们的这种看法。
They said they would study hard and live up to their parents' expectations.
他们说他们会努力学习，不辜负父母对他们的期望。
Khan said students also learn the study material at their own speed through videos.
可汗还说到，这里的学生们能够按照自己的学习进度来观看教学视频，学习课程。
Khan said students also learn the study material at their own speed through videos.
可汗还说到，这里的学生们能够按照自己的学习进度来观看教学视频，学习课程。
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