thank goodness [ˈɡʊdnəs] 谢天谢地，幸亏；感谢上帝；感谢上天
Thank goodness you found the key I lost.
If you know you pain , thank goodness , you still alive.
Thank goodness, the old man is getting better and better.
Ahha! There's a well, I found some water! I can have a drink there. Thank goodness!