Would you like to stay for lunch? It's just pot luck.你愿意留下来吃午饭吗？就是家常便饭而已。

IVF costs a lot of money and it's all a question of pot luck.试管婴儿要花很多钱, 而且还全凭运气。

If you haven't made an appointment, take pot luck and knock on the door.如果没有预约, 那就敲门试试运气吧。

I don't have much in the way of food, so you'll have to take pot luck, I'm afraid.我这儿可吃的不多, 所以恐怕你只能有什么吃什么了。