Scott LaGanga,director of PhRMA, a leading pharmaceutical research and manufacturing company, says it's easy and profitable to sell look-alike,low quality drugs.

VOA: standard.2010.06.07

You have to look at, also, the quality of that information.

你也要注意，信息的质量。

麻省理工公开课 - 媒体、教育、市场课程节选

This led people to go back and look at the places that were manufacturing the vaccine to make sure that they were all producing vaccine of the proper quality.

这现象让人们回溯并且审视,制作疫苗的地方,以确认他们生产的疫苗,质量都合格

耶鲁公开课 - 生物医学工程探索课程节选

"This will serve as a catalyst to help Nigeria to be ready, to improve itself, to look at the organization, to look at the quality of the facilities,and therefore I hope this will serve as a kind of stepping stone for Nigeria to be ready,".

VOA: standard.2009.10.22