At the same time, display screens on either side of the crosswalk tell people to only cross the street when the light is green.
与此同时，人行横道两侧的显示屏告诉人们只在绿灯亮的时候过马路。
2
To be on the safe side, the researchers suggest that we should use computers less than before, or turn down our screens as much as possible before sleeping.
安全起见，研究人员建议，我们应该比以前更少使用电脑，或者在睡觉前尽可能地把屏幕亮度调低。
3
Figure 12 shows one of the detail screens in the wizard - having to deal with the service deployment configuration: from server-side deployment considerations to service runtimes.