1. The police railed the spot where the accident happened. 警察将事故发生的地点用栏杆围起来。
2. But it was the second major rail accident in Shandong province this year. 但是这是今年发生在山东省的第二大主要铁路事故。
3. Owing to the differences in its rail structure, the change of track geometry is different. 由于其轨道结构的差异，相应的轨道几何状态变化是不一样的。
英英解释
n.
1. a barrier consisting of a horizontal bar and supports
2. short for railway
3. a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other
4. a horizontal bar (usually of wood)
5. any of numerous widely distributed small wading birds of the family Rallidae having short wings and v.
1. complain bitterly
2. enclose with rails
3. provide with rails
4. separate with a railing
5. convey (goods etc.) by rails
6. travel by rail or train
7. lay with rails
8. fish with a handline over the rails of a boat
9. spread negative information about
10. criticize severely
