The white sun

Today's weather should be counted as very good for outing, although the morning was very moggy. Around 10am, when we passed worlzburg with the train, we saw a white sun. 'Is that the sun or the moon?' I asked Kai. I had to make sure, because that was the very first time for me to see a sun which is not orange, not big, not splendid, and not sparkling.
Kai planned the trip back to his parents on this weekend in a kind of impulsive way, because he doesn't have enough books in our little place in Munich. So with this abruptness, he leart a new Chinese expression--bu couqiao (unfortunate coincidence), because one of my old friend is going to pass by Munich today and I will miss the chance to meet him due to this trip. Certainly, as usual, he made a funny variation out of bu couqiao. bu choujiao (prevent to get stinky feet), he said. Certainly, they sound similar enough to him. ：-）
I only hope that Chuan will know how sorry I feel, for that we cannot meet today in Munich.