When at the cross, I will show you.
到十字路口时,我会给你指路。
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。
At a busy road in front of a gate of Bishan Middle School, the crosswalk is installed to keep the students safe when they cross the road after school.
在璧山中学门口一条繁忙的马路上,为了保证学生放学后过马路时的安全,设置了人行横道。
Now, just to repeat, again I know I've got some math phobics in the audience, let me just slow down a second, all I'm doing here is I'm saying look at this equation of the pink line, look at this equation of the blue line, X is when they cross, i.e., they are equal to each other.
我再重复一遍,我知道你们之中有些人数学不怎么好,我放慢一点说,我是这么解的,看这条粉线的方程,还有这条蓝线的方程,X是二者的交点,也就是说这点两个方程相等
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