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Elizabeth Dole gave an impressive and effective nominating speech for her husband, leaving the podium to speak in a conversational way as she walked among the delegates.

伊丽莎白·多尔为她的丈夫发表了一场感人且效果不错的提名演说，她离开讲坛，用对话的方式走到代表中间交谈。

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“Survival of the fittest” is a conversational way to describenatural selection, but a more technical description speaks ofdifferential rates of survival and reproduction.

“适者生存”只是对自然选择学说的日常描述，更专业的描述则关注存活和生殖的水平差异。

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And, last, but not least, Siri is anticipated to be far more conversational in a contextual sort of way.

FORBES: Apple's New iPhone Could Be Tall, Thin And Beautiful

One way to learn the latest in conversational English: Rana Al Ruhaily, 29, a doctor who moved to Chicago from Saudi Arabia last year, says she and her husband consider the show "Family Guy" to be required TV viewing, to help them fill in gaps.

WSJ: Mastering the Finer Points of American Slang