研究者们询问了该地居民的活动量、体重以及在轻轨建成前和建成后使用公共交通的情况。
They asked about the residents' level of physical activity, body mass and use of public transportation before and after the light rail.
比方说，有几个电话号码是专让你询问准确时间、天气和交通情况的。
For example, there are Numbers that you can call to learn the correct time, the weather, and traffic information.
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