瀑布沟尾水隧洞出口高边坡稳定性问题突出。
例如在国外,如果你不会当地的语言却想通过无绳电话和对方解释你的车头下尾上地翻到了沟里,会大大延迟紧急事件处理部门救援的到来。
In a foreign country, for instance, 1 to explain via cellphone that you are upside down in a ditch when you cannot speak the local language can fatally delay the arrival of the emergency services.
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