1, By good luck, they were in the middle of a long stint in London.
2, By good luck he was able to escape.
3, More by good luck than good management I turned sideways.
4, It was only by good luck that I found such a good job.
5, By good luck the door stood open and the among the bushes the new fallen snow.
6, Good luck is a test of foresight, self-discipline and humility. Some people are unfortunately victimized by good luck - being carried away by the fruits of good luck. Dr T.P.Chia