just my luck!

something that you say when something bad happens to you

真倒霉!

They sold the last ticket five minutes before I got there - just my luck!

我到那儿5分钟前他们卖掉了最后一张票——真倒霉!

Just my luck to arrive after they had left.

我总是这样倒霉，他们离去后我才赶到。

I tried to avoid her, but it was just my luck to bump into her.

我不想见她，偏撞上她了。