A lot of people are still ignorant of the advances online education has made in recent years and fail to recognize the difference between legitimate degrees and "diploma mill" certificates.

很多人还是忽视这几年网上教学取得的进步，并且对正规的学位和“文凭制造厂”的证书无法区分。

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A lot can be done to tweak an instrument to make it sound better, and a brilliant player can make even a run-of-the-mill violin sound great for five minutes.

通过许多细节上的调整，乐器更在演奏时会呈现更佳效果，一位天才的演奏者可以让一副不择么样的小提琴在五分钟内格外动听。

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Although you don't want to waste a lot of time speculating — or be at the center of the rumor mill — it can be helpful to be observant during uncertain times.

虽然你不想浪费大量时间来推测，或者身处流言中心，但这能让你在非常时期当心点。

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The kids mill about in the parking lot, shouting, laughing and showing off their lurid outfits.

BBC: Going out with South Africa's flashy young 'boasters'

Now a lot of switchgrass has been through the mill, so to speak.

NPR: Study Boosts Switchgrass as New Alternative Fuel

As traffic logjams on Lombardi Avenue, hundreds of Cheeseheads mill around the Lambeau Field parking lot, chomping on Johnsonville brats and swigging Leinenkugels.

FORBES: Magazine Article