I never noticed before, but there's a 蓮霧 (rose apple) tree that grows behind our dorm, near the end of the low wall that everyone steps over to get to the rest of the campus. 蓮霧s, I learned last Thursday, grow in groups of three. The reason why the ones you buy at the market are all big is because they pluck out two of the fruits when they first start growing. That way, the one that's left grows bigger.