rail ·noun (BAR)
Definition: a bar around or along something that you can hold for support to stop you from falling Level: C2
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.