The goal is to keep drivers alert and decrease their frustration while they have to keep to a lower speed limit.

它的目标是保持司机警惕，当他们不得不保持一个较低的速度限制时，降低他们的失落心情。

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The goal is to keep drivers alert and decrease their frustration while they have to keep to a lower speed limit.

它的目标是保持司机警惕，当他们不得不保持一个较低的速度限制时，降低他们的失落心情。

youdao