Why are stoplights Red, Yellow and Green?
为什么交通信号灯采用红、黄、绿色？
I want to be able to check my E-mail at stoplights.
我想能在红灯时查看我的电子邮件。
Would you replace the current classical stoplights with these new Sand Glass Traffic Lights?
大家想要当前传统的老式红绿灯换成这种新型的沙漏交通信号灯吗？
Would you replace the current classical stoplights with these new Sand Glass Traffic Lights?
大家想要当前传统的老式红绿灯换成这种新型的沙漏交通信号灯吗？
应用推荐