speed bump

• 横设在道路上使车辆减速的凸起路面障碍物；也比喻过程中的小障碍或短暂延误。

A raised ridge or hump built across a road to slow down traffic; also used figuratively to describe a minor obstacle or delay in progress.

1. Traffic calming deviceA2formal

   A raised area across a road designed to slow down vehicle traffic.

   减速带

   • The city installed speed bumps to reduce accidents.
   • Drivers must slow down when approaching a speed bump.
   • The speed bump caused the car to bounce slightly.

2. Minor obstacle or delayB2informal

   A small problem or setback that temporarily slows progress.

   小障碍

   • The funding issue was just a speed bump in the project.
   • We hit a speed bump when the server crashed, but we recovered quickly.
   • Don't worry, this is only a speed bump on the road to success.