It was an unlucky day for him; he lost his keys and missed his flight.
对他来说这是个倒霉的日子，他丢了钥匙还错过了航班。
The team had an unlucky streak, losing five consecutive matches.
这支球队运气不佳，连续输了五场比赛。
She was unlucky in love, experiencing one heartbreak after another.
她在爱情中运气不好，一次又一次地遭受心碎。
He was unlucky to be caught in the rain without an umbrella.
他很不幸，在没有带伞的情况下被雨淋了。
The investor had an unlucky investment that resulted in significant losses.
这位投资者不幸投资失败，导致了重大损失。
The car broke down on the highway – it was just one of those unlucky days.
车子在高速公路上抛锚了，就是那种倒霉日子中的一天。
The explorers were unlucky to encounter a severe storm during their journey.
探险者们在旅行中不幸遭遇了严重的风暴。
She was unlucky enough to slip on a banana peel and sprain her ankle.
她不幸踩到香蕉皮滑倒，扭伤了脚踝。
His business failed due to a series of unlucky events beyond his control.
由于一系列他无法控制的不幸事件，他的生意失败了。
Despite his hard work, he was unlucky not to get the promotion he deserved.
尽管他努力工作，但他还是不幸地没有得到应得的晋升。
there it is, the big "but" - I've been unlucky.