A spokeswoman for the mayor's office, Joanna Dovan,says the Pittsburgh area has been working to improve its air quality.

VOA: special.2009.07.13

It's a puzzle, but it has for its delight a kind of solitary quality, both of the composer and of the solver of the chess problem.

它是一个谜语，却具有某种令人愉快的自我的特性，不论是设题的人还是解题的人都能感知到。

耶鲁公开课 - 1945年后的美国小说课程节选

So, language is this communal set of rumors spiritualized by its very vagueness and shared quality.

因此，语言以其模棱两可的特性,营造出这种精神化的谣传的公社氛围。

耶鲁公开课 - 1945年后的美国小说课程节选

The chemical quality of glass is what makes up its color.

VOA: special.2009.09.16

The purpose of new form is not to express new content, but to change an old form which has lost its aesthetic quality lost its power to take the film away from our eyes].

新形式的目的不是要表达新的内容，而是要更换已经失去美学价值的旧形式,不能调整我们看世界的旧眼光了。

耶鲁公开课 - 文学理论导论课程节选

She says the GI project will protect the environment in this region and make sure that Kampot pepper keeps its high quality and is not mixed with lesser quality peppers.

VOA: standard.2009.04.16

Zooey That thread of the mystical quality of language at its extreme of literary power is what I drew out of Franny and Zooey.

我所描述的Franny和,正是那种语言的神秘色彩，处于它极端的艺术感染力。

耶鲁公开课 - 1945年后的美国小说课程节选

Henderson,appearing on NBC, said General Motors is building a plan around four core brands and hopes to improve the quality of its vehicles to regain the confidence of the American consumer.

VOA: standard.2009.04.05