just my luck

例句：

1. 1. I'm so glad you came to visit me.It's just my luck that you're here when I need you the most.
   我很高兴你来拜访我。真倒霉，你在这个时候来。
2. 2.She was just my lucky charm.
   她是我的幸运符。
3. 3.It's just my luck that I won't be able to go on vacation this year.
   我真倒霉，今年去不了度假了。