I'd like to start by mentioning the research of American sociologist Mark Granovetter in 1973.

首先我想介绍美国社会学家马克·格兰诺维特在1973年的研究。

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BIG DANCING SCENE | Mark Piznarski, the director of Gossip Girl's Episode 100, teased that at the very start of the hour, "You're going to see something that the cast has never done before."

宏大的舞蹈场面。《绯闻女孩》第一百集的导演Mark Piznarski开玩笑说：“在剧集的一开始，你会看到《绯闻女孩》的演员们从未有过的表演。”

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And in a survey to mark the start of Diabetes Week, thousands of people said they wish they could turn back the clock.

在为纪念“糖尿病周”的发起而开展的一项调查中，成千上万的人说他们希望时光能够倒转。

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As Somalis prepare to observe the start of the Muslim holy month of Ramadan, al-Shabab and Hisbul Islam rebels appeared to have made good on their vow to mark the start of Ramadan with intensified attacks against the government and the African Union mission in Mogadishu known as AMISOM.

VOA: standard.2009.08.21

Artists painted the exterior of the property to mark a countdown to the start of the revamp project.

BBC: John O' Groats revamp work starts

The memo was sent to mark the start of Microsoft's new financial year on 1 July.

BBC: Microsoft chief executive Steve Ballmer

Paterson converted to send Scotland into the break with a seven-point lead but Italy levelled the score on the hour mark after a cagey start to the second period.

BBC: Italy 23-20 Scotland