求翻译：　　企业物流外包风险事件的发生及其后果都具有偶然性。风险事件是否发生、何时发生、发生之后会造成什么样的后果.这是不以人的意志为转移的 如承包方的仓库突然失火.运输车辆交通堵塞无法按时抵达等等。是什么意思？

Logistics outsourcing risk events and their consequences have a chance. Risk event has occurred, when it occurred, then what kind of consequences will result, which is not the people's will as suddenly as the contractor's warehouse fire. Transport vehicle congestion can not arrive on time and so on.