同时，他也骄傲地请来访者看他和父亲为遮盖井口做的木挡板，以防止再次发生类似事故。
At the same time, he is proud to show visitors the wooden barrier he and his father built to cover the well, to prevent similar incidents.
我希望你会考虑我的建议和改进你的购物环境，防止此类事故的再次发生。
I hope you may consider my suggest and improve your shopping environment, preventing such kind of accident from happening again.
要采取果断措施，防止淮河流域再次发生重大水污染事故。
Decisive measures must be adopted to prevent serious water pollution accidents from happening again in the Huai River drainage area.
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