PLAY FOR THE TIME

At its most straightforward, a green neighborhood simply means more places for kids to play—which is vital since time spent outdoors is one of the strongest correlates of children's activity levels.

从最直接的意义上说，一个绿色社区仅仅意味着有更多的地方供孩子们玩耍，而这是至关重要的，因为户外活动时间是与孩子们的活动水平最相关的因素之一。

The focus on academic "skills and drills" has cut deeply into recess and other time for free play.

专注学业“技能训练”大大减少了课间休息和自由活动的时间。

In the study, the researchers let volunteers read, play games and watch movies on a screen for different time while measuring how much light their eyes received.

在这项研究中，研究人员让志愿者在不同时间于屏幕上阅读、玩游戏和看电影，同时监测他们的眼睛接收到的光线。