I deeply regret the death of college students. Nevertheless, I still want to tell you realistically: if the plot you introduced is completely true, the consequences of college students' death can only be borne by themselves, and no one can pay the bill. I agree with the first five sentences that Brother Wolf said, and the fourth sentence has been made clear. I didn't expect the fifth sentence to be very long and slightly contradictory to the fourth sentence. I disagree. Brother Wolf said: The owners and managers of the reservoir failed to fulfill their responsibilities, because "for places with dangerous water depth, the reservoir should be equipped with guardrails or supervised". According to this view, in order to prevent the bridge from falling, should the owners and managers of the bridge install protective nets under the bridge or send people around to supervise it? Isn't it enough to set up obvious signs, take safety measures and send people to supervise when digging holes, maintaining and installing underground facilities in public places, roadsides or passages? Otherwise, if damage is caused to others, the constructor shall bear civil liability. Therefore, my opinion is that it is enough for the owners and managers of the reservoir to fully prompt and inform, and it is impossible to install guardrails or send people to supervise in places with deep water. Doing so is a requirement for all people and managers.