现在在伊利诺伊州西北大学的研究者们，当时由德尔克·布洛克曼带头，对超过五十万张一美元钞票在五年内的活动情况进行了分析。

Researchers led by Dirk Brockmann, now at Northwestern University in Illinois, analysed the movements of more than half a million US one-dollar bills as they were passed around over five years.

youdao

在努力遏制伊斯内尔狂轰滥炸般发球的当口，第二盘德约科维奇击坏了球拍，并在第四盘抢七中违规受到处罚。

Struggling to contain Isner's booming serve, Djokovic smashed his racket in the second set and received a ball violation penalty in the fourth set tiebreaker.

youdao

她的子女都是她和第一任丈夫索托马约尔公爵之子、工程师路易斯·马丁内斯·德·伊鲁霍所生。

All her children were born to her first husband, engineer Luis Martinez DE Irujo, son of the Duke of Sotomayor.

youdao