Due to unforeseen circumstances, the play has been cancelled.

【unforeseen】由于突发情况，比赛被取消。

Unfortunately, due to unforeseen circumstances, I won't be able to submit it on time.

不幸的是, 由于不可预见的情况, 我将无法按时提交作业。

I am afraid I won't be able to submit the assignment on time due to unforeseen circumstances.

由於不可預見的情況, 我恐怕無法按時提交任務。

Due to unforeseen circumstances at my workplace, I have been asked to undertake an urgent project which requires utmost attention and dedication.

由于我工作场所的意外情况，我被要求承担一项需要高度关注和奉献的紧急项目。

Last week, I finally reached someone at the transport company and all they would tell me was that due to unforeseen circumstances, there will be a delay in delivery.

上周，我终于联系到了运输公司的人，他们只会告诉我，由于不可预见的情况，交货将会延迟。

This is mostly due to unforeseen circumstances