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。

youdao

Hello, I am Mark. I am American. Are you Chinese?

你好，我是马克。我是美国人。你是中国人吗？

youdao

Mark Serreze, director of the American National Snow and Ice Data Center (NSIDC) in Colorado, thinks that sea level rise is going to be a bigger and bigger problem, as we move through the 21st century.

美国国家冰雪数据中心（NSIDC）位于科罗拉多州，其主任马克·塞雷泽（Mark Serreze）认为，随着我们进入21世纪，海平面上升将成为一个越来越大的问题。

youdao

In nineteen thirty-five, Ernest Hemingway wrote: "All modern American literature comes from one book by Mark Twain called 'Huckleberry Finn.'

VOA: special.2010.03.21

Mark Gendreau works at the Lahey Clinic Medical Center in the American state of Massachusetts.

VOA: special.2009.07.14

Faith Lapidus has more. Mark White built his first non-American playground in Poland.

VOA: special.2010.11.05

Alongside him were fellow former world No. 1 Vijay Singh and fellow American Mark Wilson, who both moved up from 15th overnight with their 68s.

CNN: Tiger vows to 'clean up' after more late lapses at Bay Hill

American Mark Miller came in third, and remains third overall, after finishing four minutes 22sec behind Sainz on the stage and is now 28min 12sec behind overall.

CNN: STORY HIGHLIGHTS

Frenchman Peterhansel, whose BMW was delayed by transmission problems on Wednesday, passed 11 cars to finish the Antofagasta to Iquique run ahead of Sainz, with Wednesday winner, American Mark Miller, third.

CNN: Peterhansel wins as Sainz extends lead