"When children enter school, there is a large socioeconomic gap in their vocabularies," said the University of Chicago's Meredith Rowe, whose study appears in the journal Science.

芝加哥大学的梅里·蒂斯·罗伊说：“孩子在刚上学时，他们在词汇方面存在一个很大的社会经济差距。”该研究结果在《科学》期刊上发表。

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Before her appointment, Ms. Curry had been passed over for the co-anchor role when Meredith Vieira was picked instead in 2006 to take over for longtime co-anchor Katie Couric.

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Lauer wasn't involved in Curry's tear-filled departure, he didn't help his case by telling reporters he favored bringing Katie Couric back to the show when Meredith Vieira left in June 2011.

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In early April, I was outraged when she told Meredith Viera that she was like any other mother in America, struggling to make ends meet.

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