数学的单双数是哪些简介：Wearing armor with a white flag and no pointed helmet, he is a man in his thirties, with single eyelids, small eyes, and a slight beard. Although his body is not strong, he looks very shrewd.
Wearing armor with a white flag and no pointed helmet, he is a man in his thirties, with single eyelids, small eyes, and a slight beard. Although his body is not strong, he looks very shrewd.
