“thank your lucky stars” 的字面意思是 “感谢你的福星”，实际用来感叹 “庆幸自己运气好” 或 “对意外的好结果感到庆幸不已”。

【例句】
I thank my lucky stars that I found this job when I did.
我找到这份工作时，庆幸自己运气好。

You should thank your lucky stars that you didn’t get asked to leave the meeting after you fell asleep.
你真该庆幸你在会议中睡着后没被赶出去。