And here d, of course, can take the values from plus three down to minus three.

而d层，当然，能够包括从+3到-3的所有值。

麻省理工公开课 - 固态化学导论课程节选

First, we saw a request from the institute that all media organisations who'd covered the story should take their articles down and issue retractions, with a vague threat of legal action.

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Perhaps it would help us get better grades, land a better job, but it might also take us down a road we'd prefer not to travel.

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"Go to your favorite pharmacy and walk up and down the aisles, and take the things off the shelf you'd like to have at home, " she advises, adding that Imodium and antibiotics are essential additions to any travel medical kit.

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