meaning "jump forward unexpectedly change the level, such as at a bridge crossing drainage pipes and a pedal to slow down the speed, etc, driving more slowly and increasing caution .
A warning, " meaning The way forward, as the sudden change in the semis. Cross drains And vehicle speed bumps, etc. Drivers should slow down and proceed with caution.
meaning, the way forward the level change suddenly, such as the semis crossing drain and vehicle speed, etc. The drive to slow down and be more careful!