This we did set up a number of vehicles for peered appeal exchange and peered export exchange.

我们利用多种手段进行,同伴之间信息输入交流,信息输出交流。

麻省理工公开课 - 媒体、教育、市场课程节选

Now think of another product in American history that doubled every decade for four decades, and then imagine that that product became the country's, without question, absolute largest export.

思考下在美国历史中有没有另一种产品曾,有如此辉煌的成就,那么这个产品将毫无疑问地,成为美国最大的出口产品

耶鲁公开课 - 美国内战与重建课程节选