To concede a goal in the last minute is really bad luck.

但要承认，在最后一分钟失球确实运气不佳。

youdao

I think it was really bad luck.

我认为运气真是糟透了。

youdao

Henry: That's really bad luck. If your job's really urgent, I would go to the copy bureau across the street.

亨利：那真倒霉。假如是很急的话，我建议你去马路对面的影印店影印。

youdao

I have really bad luck.

我最近太背了。

I can't 实战 - SpeakingMax英语口语达人

Or, to put it another way, what really killed the dinosaurs was a string of the most atrocious bad luck.

ECONOMIST: Mass extinctions