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The buses which drove on the highway or the tunnel had a car accident, there is best to have a flashlight. "Light strike" will not only provide you an emergency light source, but also it was a hammer which could break the windows. When people run out of the bus, the Segmented flashlight can share the light with other people.
Nei-Yu, Zheng Wei-Ting, Chang Kai Chi, Ren Fang, Ho