雪天路滑用英文怎么写呀

在路边放的告示牌子吗？那么就是
"SLIPPERY WHEN SNOWY"或者"SLIPPERY WHEN FROZEN"
"雨天路滑"是"SLIPPERY WHEN WET".
因为是告示牌，所以要大写字母。而且因为很明显是路边的，“路”这个词可以省略了。

The roads are slippery during the snow season.
When it snows, the roads are slippery.

你指的是交通上的吗?我以前坐车在告诉公路上看到过,现在忘记了,"滑"应该是SLIDE吧!希望对你有帮助

road is slippery in the snowy day.