bridge rail

基本解释

Jumping would have been easy: Just step over the bridge railing and let go.
跳下也许简单：只需跨过桥的栏杆并掉下。
My mother-in-law no thanks, that helps you, please come to the old bridge railing front, take a look at what's under the bridge?
＂婆婆不用谢，这事好办。您老人家请过来，到桥栏杆前面来，看看桥下有什么？＂。
blog.sina.com.cn
The bridge was really quite high and at first no one dared to attempt it. All of us got up on the bridge railing and pretended to jump. But after many pretend gestures, we dared not do it.
那桥确实有些高，刚开始，谁也不敢跳，大家胆颤心惊地翻过桥栏杆，做出要跳的模样，比划了半天，不敢撒手，一撒手，人就会掉下去。
b.qzone.qq.com

And Ms Banerjee seems to think the way to lure tourists to Kolkata is to paint every railing, kerbside, public urinal, roundabout and bridge in blue-and-white stripes.
ECONOMIST: Banyan
In Pisek, south Bohemia, the railing, cobbles and a statue from the Czech Republic's oldest surviving stone bridge -- constructed in the 13th century -- were swept away by floodwaters.
UNESCO: Communication et information