"The problem with that body of research is that it's difficult to interpret because obviously people with existing mental health problems use cigarettes to self-medicate."

VOA: standard.2010.06.15

And so it seemed a natural move for early Christian writers to use this existing pastoral form when they wanted to speak on subject of priests or ministers or affairs of the church.

于是用现存的田园诗来谈论,关于牧师或教堂事务的话题,成了早期基督派作家非常自然的转变。

耶鲁公开课 - 弥尔顿课程节选

The government will use as much as $100 billion from an existing fund set up to rescue the ailing financial sector to provide guarantees and low interest loans to those willing to purchase these assets.

VOA: standard.2009.03.23