汽车在冰上打滑，撞到了桥边的护栏。

The car skidded on the ice and ran into the guard ___rail on the side of the bridge.

然而，如果浴室里有扶手和更低的床，会更舒适。

However it could be much more comfortable if there were hand ___rails in the bathroom and a lower bed.

下楼梯时总是抓住扶手以支撑身体。

Always hold the hand ___rail when descending the stairs for support.