exceptional circumstances

基本解释

I have never seen the video cable go bad, but I think that in exceptional circumstances it is possible.
我从来没有见过视频电缆出现问题，但我认为在特殊情况下那也是种可能。
It demonstrates what happens if there are no exceptional circumstances; namely, it inserts records into the database.
它演示了不发生异常时的情况；也就是说，它将向数据库中插入记录。
And, in a measure apparently maintained for Spain's own Gypsy community, the law allows a 14-year-old to marry if a judge decides there are exceptional circumstances.
而且，很显然地，在为西班牙自己的吉普赛社区保留的衡量标准中，如果确认有特殊情况的存在，那么法律是允许一个14岁的人结婚的。

He also said that forced transfers of staff, which critics say demoralized workers, would be applied only in exceptional circumstances.

The shares to be issued to Intel, TSMC and Samsung will be non-voting except in exceptional circumstances.
ENGADGET: Acronym-loving Samsung joins Intel and TSMC, buys stake in ASML