Clinton arrived here a day after the Obama administration announced it was sending more money, technology and manpower to secure the Mexican border and help Mexican authorities in their battle with drug cartels.

VOA: standard.2009.03.25

Here we have arrived at a second sharp break with the general experience of mankind.

于是就产生了第二次,人类一般经验的大变革

耶鲁公开课 - 古希腊历史简介课程节选

Here's how he arrived at the principle of maximizing utility.

在此基础上他提出了功利最大化的原则。

耶鲁公开课 - 公正课程节选