空气质量作为衡量一个城市环境质量的重要指标之一

题目

空气质量作为衡量一个城市环境质量的重要指标之一
The air quality as one of the significant targets measuring a city’s environment quality
OK?
一直以来都是北京奥运会的焦点话题，
The air quality as one of the significant targets measuring a city’s environment quality has always been the focal topic of Beijing Olympics.

答案

As one of the major indicator measuring a city's environment quality,the air quality has always been a focus topic for the Beijing Olympic Game.
The air quality,as one of the major indicator measuring a city's environment quality,has always been a focus topic for the Beijing Olympic Game.