黄灯减速慢行用英语怎么说

"Yellow light slow down" in English is commonly referred to as "yellow light caution."
It is derived from the standard traffic light signals that are used in many countries to regulate the flow of traffic. Yellow lights are usually used as a warning to drivers that the traffic signal is about to turn red, and they should start slowing down.
Example sentence in English:
"The yellow light caution means that you should start slowing down."
中文翻译：“黄灯警告意味着你应该开始减速。”