unforeseen incident的用法和樣例：
例句
- His parents' hopes and plans left no room for any unforeseen circumstances.
父親母親的計劃和希望，絲毫沒為意外事故留個餘地。 - From the openning of the hostel,they succussfully led more than 1000 people to reach to the peak of Haba jokul without any safety incident.
旅舍自開業以來已經成功帶領近千名登山愛好者登上了哈巴山頂，從未發生過人員傷亡的意外事故，這些都得益於豐富的登山經驗和嚴謹的登山安全原則。
