However,much of what we know today about the Grand Canyon was recorded by John Wesley Powell.

VOA: special.2009.10.07

However, in our culture today, we don't give ourselves the permission to be human, the freedom to experience these painful emotions as well.

然而在当今的文化中，我们不准许自己为人，也没有体会痛苦情绪的自由。

哈佛公开课 - 幸福课课程节选

However,another nickname for Chicago is still true today.

VOA: special.2010.01.10