thank your lucky stars
US /θæŋk jʊər ˈlʌk.i stɑːrz/
UK /θæŋk jʊər ˈlʌk.i stɑːrz/

1.
感谢幸运星, 庆幸
to be grateful for good fortune or for having avoided something bad
:
•
You should thank your lucky stars you didn't get caught in that traffic jam.
你应该感谢你的幸运星,你没有被堵在那个交通堵塞里。
•
I thanked my lucky stars that I remembered my passport at the last minute.
我感谢我的幸运星,我在最后一刻想起了我的护照。