Bicycle patrols, a community policing tactic that some law enforcement agencies scaled back over recent years, is seeing a revival as the price of gasoline rises across the US.

• 由于近期全美的汽油价格飙升，在最近几年被一些执法机构放弃的骑自行车巡逻这一维护小区治安的策略，又有"卷土重来"的现象。