轮胎的侧壁被路边尖锐的石头划破了。

The sharp stone on the roadside cut a hole in the ___sidewall of the tire.

工人们在仓库的侧墙上安装了新的隔热材料。

Workers installed new insulation on the ___sidewalls of the warehouse.

滑雪时，她不小心把滑雪板的侧边撞到了岩石上。

While skiing, she accidentally hit a rock with the ___sidewall of her ski.