英语翻译句子是when you are crossing a road,stand well back from the

when you are crossing a road,stand well back from the curb while you wait for the light to change。当你过马路时,要站在马路屏障里等待红绿灯的变化every meter really does count when you are close to traffic当你靠近那些车辆时,每靠近一米都有着重要的意义as the traffic begins to move,fumes can be reduced in just a few seconds当车辆开始移动时,汽车尾气会在几秒钟内扩散开去so holding your breath for just a moment can make a difference,even though it might sound silly。所以,屏住你的呼吸片刻是十分重要的,即使这样做听起来很傻