Last Updated
：2025/11/20
mobile speed bump
（ plural ）
Quizzes for review
A car that travels at the speed limit to prevent the cars behind from exceeding it.
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mobile speed bump
During the festival, the city deployed a mobile speed bump to keep vehicles moving at the posted limit and reduce accidents.
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During the festival, the city deployed a mobile speed bump to keep vehicles moving at the posted limit and reduce accidents.
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