ice的形容词形式是什么意思

　　The roads were icy but she stopped the car expertly.

　　道路结了冰，可她却非常熟练地把车停了下来。

　　Driving on icy roads can be pretty hairy.

　　在结冰的道路上开车很惊险。

　　Two cars skidded on the icy pavement.

　　两辆汽车在结冰的路面上打滑。