保持安全速度和电力驱动的自动驾驶汽车将大幅降低污染水平，减轻对不可再生燃料的依赖。
Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels and dependency on non-renewable fuels.
以安全速度离开。
不遵守避碰规则、雾航规则； 不采用安全速度航行；
The factory was closed for failing to comply with government safety regulations.
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