exceptional circumstances造句怎么写

I have never seen the video cable go bad, but I think that in exceptional circumstances it is possible.

It demonstrates what happens if there are no exceptional circumstances; namely, it inserts records into the database.

29.4 In exceptional circumstances Members referred to in paragraph 1 may be given departures from their notified programmes and measures and their time-frame by the Committee if such departures are deemed necessary for the process of transformation.