stop light
US /ˈstɑːp laɪt/
UK /ˈstɑːp laɪt/

1.
红绿灯, 交通灯
a set of automatically operated colored lights, typically red, yellow, and green, for controlling traffic at road junctions and pedestrian crossings
:
•
The car stopped at the stop light.
汽车在红绿灯处停了下来。
•
Wait for the stop light to turn green before crossing.
等红绿灯变绿再过马路。