以前有科普读物说,主要是双脚步距不一样,在无参考物的地方,就会走成圈.

来源: 最接近太阳的人于 2023-01-29 06:52:21 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.