The essential task of education is to enlighten.

教育的本质使命是启蒙。

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For a few, there is one final but essential task to perform.

对一些人来说，这里只有一个重要的终极目标。

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Designing teaching objectives is the essential task of teaching designing.

教学目标的设计是教学设计的首要环节和任务。

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Figuring out how to perform an essential task like switching from AM to satellite radio can be daunting at first.

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It is heartening to see that straight out of the starting gate, it is working to accomplish this essential task.

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"To have women serving in infantry ... could impair the mission essential task of those units, and that's been proven in study after study, " he told radio host Laura Ingraham earlier this month.

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