sleeping policemen路面上强制减速的小凸面

【使用地区】：特立尼达岛

【释义】：

Humps in the road to slow traffic．In the United States these would be called，less colorfully，speed bumps，road bumps，or safety bumps．

意义如上所示。在美国称之为speed bumps，road bumps或safety bumps，但缺乏像sleeping policemen这样的幽默色彩。